APA (7th ed.) Citation

Dobrovolny J.S, Hipskind J.P, Bokenkamp R.W, & O'Bryant D.C. (1966). Problems in Enginnering drawing and geometry. Stipes publishing company.

Chicago Style (17th ed.) Citation

Dobrovolny J.S, Hipskind J.P, Bokenkamp R.W, and O'Bryant D.C. Problems in Enginnering Drawing and Geometry. Illinois: Stipes publishing company, 1966.

MLA (9th ed.) Citation

Dobrovolny J.S, et al. Problems in Enginnering Drawing and Geometry. Stipes publishing company, 1966.