APA aipamena

DUTTA, S. (2003). LET'S KNOW ABOUT POLAR REGIONS. UNICATE PUBLICATIONS.

Chicago Style aipamena

DUTTA, SHYAMA. LET'S KNOW ABOUT POLAR REGIONS. PUNE: UNICATE PUBLICATIONS, 2003.

MLA aipamena

DUTTA, SHYAMA. LET'S KNOW ABOUT POLAR REGIONS. UNICATE PUBLICATIONS, 2003.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.