APA (7th ed.) Citation

Association for Programmed Learning and Educational Technology, Association for Educational and Training Technology, Association for Programmed Learning and Educational Technology. Annual Conference, & Educational Technology International Conference. (1969). Aspects of educational technology. Pitman.

Chicago Style (17th ed.) Citation

Association for Programmed Learning and Educational Technology, Association for Educational and Training Technology, Association for Programmed Learning and Educational Technology. Annual Conference, and Educational Technology International Conference. Aspects of Educational Technology. London ; New York: Pitman, 1969.

MLA (8th ed.) Citation

Association for Programmed Learning and Educational Technology, et al. Aspects of Educational Technology. Pitman, 1969.