APA aipamena

Rosales Meda, M., ESTRADA, A., & López, J. E. (2008). Demographic survey of black howler monkey (Alouatta pigra) in the Lachuá Eco-region in Alta Verapaz, Guatemala.

Chicago Style aipamena

Rosales Meda, Marleny, ALEJANDRO ESTRADA, y Jorge E. López. Demographic Survey of Black Howler Monkey (Alouatta Pigra) in the Lachuá Eco-region in Alta Verapaz, Guatemala. 2008.

MLA aipamena

Rosales Meda, Marleny, ALEJANDRO ESTRADA, y Jorge E. López. Demographic Survey of Black Howler Monkey (Alouatta Pigra) in the Lachuá Eco-region in Alta Verapaz, Guatemala. 2008.