Παραπομπή APA

Shupe, H. W., & Machovina, P. E. (1956). Manual of engineering geometry and graphics for students and draftsmen.

Παραπομπή Chicago Style

Shupe, Hollie W., και Paul E. Machovina. Manual of Engineering Geometry and Graphics for Students and Draftsmen. McGraw-Hill book Co, Inc, New York, 1956.

Παραπομπή MLA

Shupe, Hollie W., και Paul E. Machovina. Manual of Engineering Geometry and Graphics for Students and Draftsmen. 1956.