French, T. E., & Vierck, C. J. (1960). Manual of engineering drawing for students and draftsmen, eng (9th ed.).
Styl ChicagoFrench, Thomas E., a Charles J. Vierck. Manual of Engineering Drawing for Students and Draftsmen, Eng. 9th ed. 1960.
Citace podle MLAFrench, Thomas E., a Charles J. Vierck. Manual of Engineering Drawing for Students and Draftsmen, Eng. 9th ed. 1960.
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