APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

Weaver, Gilbert G., and E.W Bollinger. Visual Aids: Their Construction and Use. D. Van Nostrand Co, 1949.

MLA (8th ed.) Citation

Weaver, Gilbert G., and E.W Bollinger. Visual Aids: Their Construction and Use. D. Van Nostrand Co, 1949.

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