Gaya APA

Duelm, B, R., Kopt, M, B. (1989). Teacher's resource guide for use with computer - aided drafting . South Holland: The Goodheart-Willcox Co,.

Gaya MLA

Duelm, Brian, R., Kopt, Michael, B. "Teacher's resource guide for use with computer - aided drafting". South Holland: The Goodheart-Willcox Co,, 1989. Text.