Gaya APA

ZIPPRICH, A, E. (1954). FREEHAND DRAFTING: FOR TECHNICAL SKETCHING (3rd). New York: D. VAN NOSTRAND COMPANY, INC.

Gaya MLA

ZIPPRICH, Anthony, E.. "FREEHAND DRAFTING: FOR TECHNICAL SKETCHING". 3rd New York: D. VAN NOSTRAND COMPANY, INC, 1954. Textbook.