Dyfyniad APA

James D. Bethune. Engineering Graphics with AutoCAD? 2009 (1.). Pearson India.

Dyfyniad Arddull Chicago

James D. Bethune. Engineering Graphics with AutoCAD? 2009. 1. Pearson India.

Dyfyniad MLA

James D. Bethune. Engineering Graphics with AutoCAD? 2009. 1. Pearson India.

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