APA (7th ed.) Citation

Knapp, S. D. (1980). Online Services: Beyond Fee or Free.

Chicago Style (17th ed.) Citation

Knapp, Sara D. Online Services: Beyond Fee or Free. 1980.

MLA (9th ed.) Citation

Knapp, Sara D. Online Services: Beyond Fee or Free. 1980.

Warning: These citations may not always be 100% accurate.