APA (7th ed.) Citation

King, D. W., & Bryant, E. C. (1971). The evaluation of information services and products. Information Resources Press.

Chicago Style (17th ed.) Citation

King, Donald W., and Edward C. Bryant. The Evaluation of Information Services and Products. Washington: Information Resources Press, 1971.

MLA (9th ed.) Citation

King, Donald W., and Edward C. Bryant. The Evaluation of Information Services and Products. Information Resources Press, 1971.