Shupe, H. W., & Machovina, P. E. (1956). Manual of engineering geometry and graphics for students and draftsmen.
Chicago Style aipamenaShupe, Hollie W., and Paul E. Machovina. Manual of Engineering Geometry and Graphics for Students and Draftsmen. McGraw-Hill book Co, Inc, New York, 1956.
MLA aipamenaShupe, Hollie W., and Paul E. Machovina. Manual of Engineering Geometry and Graphics for Students and Draftsmen. 1956.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.