APA (7th ed.) Citation

Simpson, R. S. (1987). Effective audio-visual. Focal Press.

Chicago Style (17th ed.) Citation

Simpson, Robert S. Effective Audio-visual. Oxford: Focal Press, 1987.

MLA (9th ed.) Citation

Simpson, Robert S. Effective Audio-visual. Focal Press, 1987.

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