Dyfyniad APA

GIACHINO, J., & BEUKEMA, H. J. (1972). Engineering technical: Drafting and graphics.--ed.3. American Technical Society.

Dyfyniad Arddull Chicago

GIACHINO, J.W, and Henry J. BEUKEMA. Engineering Technical: Drafting and Graphics.--ed.3. Chicago: American Technical Society, 1972.

Dyfyniad MLA

GIACHINO, J.W, and Henry J. BEUKEMA. Engineering Technical: Drafting and Graphics.--ed.3. American Technical Society, 1972.

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