APA (7th ed.) Citation

Powell, L. S. (1974). A guide to the overhead projector (2nd rev. ed.). British Association for Commercial and Industrial Education.

Chicago Style (17th ed.) Citation

Powell, Leonard Sutherland. A Guide to the Overhead Projector. 2nd rev. ed. Lond.: British Association for Commercial and Industrial Education, 1974.

MLA (8th ed.) Citation

Powell, Leonard Sutherland. A Guide to the Overhead Projector. 2nd rev. ed. British Association for Commercial and Industrial Education, 1974.