| Call Number | Subject |
|---|---|
| D 1-24.5 | General |
| Call Number | Subject |
|---|---|
| HE 7555-7572 | Information superhighway see ZA3201+ |
| HE 7581-7583 | Online information services industry Including Internet service providers See also QA76.55+ Computer science |
| - HE 7581 | - General works |
| - HE 7583.A-Z | - By region or country, A-Z |
See also HD9696.T44+ Telecommunication equipment industry; TK5101+ Electric engineering
| Call Number | Subject |
|---|---|
| HE 7601 | Periodicals. Serials |
| HE 7604 | Congresses |
| HE 7621 | Directories |
| HE 7631 | General works |
| HE 7645 | Government policy. Telecommunication policy |
| HE 7651 | General special |
| HE 7661 | Management |
| HE 7681-7691 | Rates |
| HE 7700 | International telecommunications |
| HE 7761-8630.7 | By region or country |
| - HE 7761-7798 | - United States |
| - - HE 7775 | - - General works |
| - - HE 7781 | - - Government policy. Telecommunication policy |
| - - HE 7787 | - - Rates |
| - - HE 7797.A-Z | - - By company, A-Z |
| - HE 7811-8630.7 | - Other regions or countries |
| - - HE 7811-7820 | - - Canada |
| - - HE 7820.5-8080 | - - Latin America |
| - - - HE 7821-7830 | - - - Mexico |
| - - HE 8081-8340.8 | - - Europe |
| - - - HE 8081-8090 | - - - General |
| - - - HE 8091-8120.5 | - - - Great Britain |
| - - HE 8341-8458 | - - Asia |
| - - - HE 8346-8360.2 | - - - Middle East. Near East |
| - - - HE 8360.3-8380.6 | - - - South Asia |
| - - - - HE 8371-8380 | - - - - India |
| - - - HE 8380.8-8410 | - - - Southeast Asia. Indochina |
| - - - HE 8410.5-8445 | - - - East Asia. Far East |
| - - - - HE 8421-8430 | - - - - China |
| - - HE 8461-8527 | - - Africa |
| - HE 8635 | - Developing countries |
| HE 8660-8688 | Wireless telegraph. Radiotelegraphy See also TK5700+ Technology |
| - HE 8675 | - General works |
| - HE 8677-8683 | - By region or country |
| - - HE 8677-8678 | - - United States |
See also HD9696.R36+ Radio supplies industry; HD9696.T46+ Television supplies industry; LB1044.8 Educational broadcasting; PN1990+ Production & direction
| Call Number | Subject |
|---|---|
| HE 8689 | Periodicals. Societies. Serials |
| HE 8689.4 | General works |
| HE 8689.7.A-Z | Special topics, A-Z |
| - HE 8689.7.A8 | - Audiences |
| - HE 8689.7.P6 | - Political broadcasts |
| - HE 8689.7.P82 | - Public broadcasting |
| HE 8689.8-8689.9 | By region or country |
| - HE 8689.8 | - United States |
| - HE 8689.9.A-Z | - Other regions or countries, A-Z |
| - - HE 8689.9.C2 | - - Canada |
| - - HE 8689.9.G7 | - - Great Britain |
| HE 8690-8699 | Radio broadcasting |
| - HE 8690 | - Periodicals. Societies. Serials |
| - HE 8694 | - General works |
| - HE 8697.2-8697.25 | - Radio audiences |
| - HE 8697.4-8697.45 | - International broadcasting |
| - HE 8697.6-8697.65 | - Pirate radio broadcasting. Offshore radio broadcasting |
| - HE 8697.8-8697.85 | - Political broadcasts. Radio in politics |
| - HE 8697.9-8697.95 | - Public radio. Community radio |
| - HE 8698-8699 | - By region or country |
| - - HE 8698 | - - United States |
| - - HE 8699.A-Z | - - Other regions or countries, A-Z |
| - - - HE 8699.C2 | - - - Canada |
| - - - HE 8699.G7 | - - - Great Britain |
| HE 8700-8700.9 | Television broadcasting |
| - HE 8700.4 | - General works |
| - HE 8700.62 | - Computer networks. Electronic information resources Including the Internet & digital libraries |
| - HE 8700.65-8700.66 | - Television audiences. Television viewers Including television program rating |
| - HE 8700.7-8700.72 | - Cable television. Community antenna television. Subscription television. Low power television. Public-access television |
| - HE 8700.73-8700.74 | - High definition television |
| - HE 8700.75-8700.76 | - Political broadcasts. Television in politics |
| - HE 8700.78-8700.79 | - Public television |
| - HE 8700.8-8700.9 | - By region or country |
| - - HE 8700.8 | - - United States |
| - - HE 8700.9.A-Z | - - Other regions or countries, A-Z |
| - - - HE 8700.9.A65 | - - - Arab countries |
| - - - HE 8700.9.A78 | - - - Asia |
| - - - HE 8700.9.C2 | - - - Canada |
| - - - HE 8700.9.E8 | - - - Europe |
| - - - HE 8700.9.G7 | - - - Great Britain |
| - - - HE 8700.9.I5 | - - - India |
| - - - HE 8700.9.Q22 | - - - Qatar |
| HE 8700.95 | Interactive television |