Παραπομπή APA

Mahapatra, G. B. (2006). Text book of Geology. CBS Publishers.

Παραπομπή Chicago Style

Mahapatra, Girija Bhushan. Text Book of Geology. India: CBS Publishers, 2006.

Παραπομπή MLA

Mahapatra, Girija Bhushan. Text Book of Geology. CBS Publishers, 2006.