Gaya APA

Giachino, J, W., Beukema, H, J. (1972). Engineering Technical: Drafting & Graphics (Ed. 3). U.S.A: American Technical sosiety.

Gaya MLA

Giachino, J., W.., Beukema, Henry, J.. "Engineering Technical: Drafting & Graphics". Ed. 3 U.S.A: American Technical sosiety, 1972. Text.