APA (7th ed.) Citation

Association for Educational and Training Technology, Percival, F., Craig, D., & Buglass, D. (1987). Flexible learning systems. Kogan Page ; Nichols Pub. Co..

Chicago Style (17th ed.) Citation

Association for Educational and Training Technology, Fred Percival, David Craig, and Dorothy Buglass. Flexible Learning Systems. London : New York: Kogan Page ; Nichols Pub. Co., 1987.

MLA (9th ed.) Citation

Association for Educational and Training Technology, et al. Flexible Learning Systems. Kogan Page ; Nichols Pub. Co., 1987.