Descriptive geometry;
essential principles and applications for students of engineering and architecture,
by Floyd A. Smutz and Randolph F. Gingrich.
APA Citation
Smutz, F. A. (Floyd Alonzo)., Gingrich, R. F. (Randolph Forney). (1950). Descriptive geometry: essential principles and applications for students of engineering and architecture. 3d ed. New York: Van Nostrand.
MLA Citation
Smutz, Floyd A. (Floyd Alonzo), and Randolph F. (Randolph Forney) Gingrich. Descriptive Geometry: Essential Principles And Applications for Students of Engineering And Architecture. 3d ed. New York: Van Nostrand, 1950.
Warning: These citations may not always be complete (especially for serials).