एपीए उद्धरण

Varkey, P. (2003). E-commersum M-commersum (2nd ed.). D. C. Books.

शिकागो स्टाइल उद्धरण

Varkey, Pattimattom. E-commersum M-commersum. 2nd ed. Kottayam: D. C. Books, 2003.

एमएलए उद्धरण

Varkey, Pattimattom. E-commersum M-commersum. 2nd ed. D. C. Books, 2003.