APA (7 ম সংস্করণ) উদ্ধৃতি

Hirschfeld, S. E. (1985). Ground Sloths from the Friasian La Venta Fauna, with additions to the pre-Friasian Coyaima Fauna of Colombia, South America. University of California Press.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Hirschfeld, Sue Ellen. Ground Sloths from the Friasian La Venta Fauna, with Additions to the Pre-Friasian Coyaima Fauna of Colombia, South America. Berkeley: University of California Press, 1985.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Hirschfeld, Sue Ellen. Ground Sloths from the Friasian La Venta Fauna, with Additions to the Pre-Friasian Coyaima Fauna of Colombia, South America. University of California Press, 1985.