Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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