APA استشهاد

Luzadder, W. J., & Duff , J. M. (2002). Fundamentals of engineering drawing (11th ed.). Prentice Hall of India.

استشهاد بنمط شيكاغو

Luzadder, Warren J., و Jon M. Duff. Fundamentals of Engineering Drawing. 11th ed. New Delhi: Prentice Hall of India, 2002.

MLA استشهاد

Luzadder, Warren J., و Jon M. Duff. Fundamentals of Engineering Drawing. 11th ed. Prentice Hall of India, 2002.