APA (7th ed.) Zitazioa

Singh, S. (2018). Biogeography. Pravalika publications.

Chicago Style (17th ed.) Zitazioa

Singh, Savindra. Biogeography. Allahbad, India: Pravalika publications, 2018.

MLA (9th ed.) Zitazioa

Singh, Savindra. Biogeography. Pravalika publications, 2018.