Citazione APA

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

Stile di citazione Chicago

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

Citazione MLA

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