Παραπομπή APA

Varghese, P. I. (2010). Engineering graphics with Autocad (21st ed.). VIP.

Παραπομπή Chicago Style

Varghese, P I. Engineering Graphics with Autocad. 21st ed. Trichur: VIP, 2010.

Παραπομπή MLA

Varghese, P I. Engineering Graphics with Autocad. 21st ed. VIP, 2010.