APA (7th ed.) Citation

Waller,Chris. (1983). Using your overhead projector and other visual aids. Fordigraph division of ofrex ltd..

Chicago Style (17th ed.) Citation

Waller,Chris. Using Your Overhead Projector and Other Visual Aids. London: Fordigraph division of ofrex ltd., 1983.

MLA (9th ed.) Citation

Waller,Chris. Using Your Overhead Projector and Other Visual Aids. Fordigraph division of ofrex ltd., 1983.

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