APA aipamena

Geetanjali. (2010). Environment and tourism. Centrum Press.

Chicago Style aipamena

Geetanjali. Environment and Tourism. New Delhi: Centrum Press, 2010.

MLA aipamena

Geetanjali. Environment and Tourism. Centrum Press, 2010.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.