APA aipamena

MAHAPATRA, G. (1987). A textbook of geology. CBS Publishers.

Chicago Style aipamena

MAHAPATRA, G.B. A Textbook of Geology. CBS Publishers, 1987.

MLA aipamena

MAHAPATRA, G.B. A Textbook of Geology. CBS Publishers, 1987.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.