APA (7th ed.) Citation

Dobrovolny,J.S, Ebert E.D, Streeter H, & Obryant,D.C. (1968). Problems in Engineering Drawing and Geometry. Stipes Publishing Company.

Chicago Style (17th ed.) Citation

Dobrovolny,J.S, Ebert E.D, Streeter H, and Obryant,D.C. Problems in Engineering Drawing and Geometry. Illiois: Stipes Publishing Company, 1968.

MLA (9th ed.) Citation

Dobrovolny,J.S, et al. Problems in Engineering Drawing and Geometry. Stipes Publishing Company, 1968.