Dyfyniad APA

Earle, J. H. (1973). Engineering design graphics (Ed.2.). Addison - Wesley.

Dyfyniad Arddull Chicago

Earle, James H. Engineering Design Graphics. Ed.2. London: Addison - Wesley, 1973.

Dyfyniad MLA

Earle, James H. Engineering Design Graphics. Ed.2. Addison - Wesley, 1973.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.