Παραπομπή APA

Gupta, B. V. R. (2010). Engineering Drawing. I K International publishing house.

Παραπομπή Chicago Style

Gupta, B V R. Engineering Drawing. New Delhi: I K International publishing house, 2010.

Παραπομπή MLA

Gupta, B V R. Engineering Drawing. I K International publishing house, 2010.