Earle, J. H. (1973). Engineering design graphics (Ed.2.). Addison - Wesley.
Chicago Edition CitationEarle, James H. Engineering Design Graphics. Ed.2. London: Addison - Wesley, 1973.
Cita MLAEarle, James H. Engineering Design Graphics. Ed.2. Addison - Wesley, 1973.
Atenció: Aquestes cites poden no estar 100% correctes.