APA (7th ed.) Citation

Duff, J. M. (1990). Concepts of technical graphics / Jon M. Duff. PWS-KENT.

Chicago Style (17th ed.) Citation

Duff, Jon M. Concepts of Technical Graphics / Jon M. Duff. Boston: PWS-KENT, 1990.

MLA (9th ed.) Citation

Duff, Jon M. Concepts of Technical Graphics / Jon M. Duff. PWS-KENT, 1990.

Warning: These citations may not always be 100% accurate.