Gaya APA

E., Z, A. (1924). FREEHAND DRAFTING; For Technical Sketching . New York: D. VAN NOSTRAND COMPANY, INC.

Gaya MLA

E., Zipprich, Anthony. "FREEHAND DRAFTING; For Technical Sketching". New York: D. VAN NOSTRAND COMPANY, INC, 1924. Textbook.