APA (7th ed.) Citation

(1989). Educational technology research and development: ETR & D. Association for Educational Communications and Technology.

Chicago Style (17th ed.) Citation

Educational Technology Research and Development: ETR & D. Washington, D.C.: Association for Educational Communications and Technology, 1989.

MLA (9th ed.) Citation

Educational Technology Research and Development: ETR & D. Association for Educational Communications and Technology, 1989.