Cita APA

Pietrek, A. G., & Fasola, L. (2014). Origin and history of the beaver introduction in South America. Web

Citación estilo Chicago

Pietrek, Alejandro G., and Laura Fasola. Origin and History of the Beaver Introduction in South America. 2014.

Cita MLA

Pietrek, Alejandro G., and Laura Fasola. Origin and History of the Beaver Introduction in South America. 2014.