APA استشهاد

Earle, J. H. (1992). Engineering design graphics (7th ed.). Addison Wesley.

استشهاد بنمط شيكاغو

Earle, James H. Engineering Design Graphics. 7th ed. Massachusetts: Addison Wesley, 1992.

MLA استشهاد

Earle, James H. Engineering Design Graphics. 7th ed. Addison Wesley, 1992.