APA ציטוט

DUFF, J. M. (1983). Problems in industrial technical illustration. Brooks/ Cole engineering division.

Chicago Style (17th ed.) Citation

DUFF, John M. Problems in Industrial Technical Illustration. California: Brooks/ Cole engineering division, 1983.

ציטוט MLA

DUFF, John M. Problems in Industrial Technical Illustration. Brooks/ Cole engineering division, 1983.