APA Style

POWELL, L.S. (1972). A guide to the use of visual aids . London: British Association for Commercial and Industrial Education.

Chicago Style

POWELL, L.S. A guide to the use of visual aids. London: British Association for Commercial and Industrial Education, 1972. Text.

MLA Style

POWELL, L.S. A guide to the use of visual aids. London: British Association for Commercial and Industrial Education, 1972. Text.

Turabian Style

POWELL, L.S. A guide to the use of visual aids. London: British Association for Commercial and Industrial Education, 1972. Print.