APA استشهاد

John, K. C., & Varghese, P. I. (2003). Machine drawing (Ed.14.). V I P.

استشهاد بنمط شيكاغو

John, K C., و P I. Varghese. Machine Drawing. Ed.14. Thrissur: V I P, 2003.

MLA استشهاد

John, K C., و P I. Varghese. Machine Drawing. Ed.14. V I P, 2003.