French, T. E., & Vierck, C. J. (1960). Manual of engineering drawing for students and draftsmen, eng (9th ed.).
Chicago ZitierstilFrench, Thomas E., und Charles J. Vierck. Manual of Engineering Drawing for Students and Draftsmen, Eng. 9th ed. 1960.
MLA ZitierstilFrench, Thomas E., und Charles J. Vierck. Manual of Engineering Drawing for Students and Draftsmen, Eng. 9th ed. 1960.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.