APA (7th ed.) Citation

Weaver, G. G., & Bollinger, E. W. (1949). Visual aids: Their construction and use. D. Van Nostrand C.

Chicago Style (17th ed.) Citation

Weaver, Gilbert Grimes, and Elroy William Bollinger. Visual Aids: Their Construction and Use. New York: D. Van Nostrand C, 1949.

MLA (9th ed.) Citation

Weaver, Gilbert Grimes, and Elroy William Bollinger. Visual Aids: Their Construction and Use. D. Van Nostrand C, 1949.