APA aipamena

Pérez Verdín, G., Lee, M. E., & Chavez, D. J. (2016). Planning forest recreation in natural protected areas of southern Durango, Mexico. Instituto de Ecología, A.C.

Chicago Style aipamena

Pérez Verdín, Gustavo, Martha E. Lee, and Deborah J. Chavez. Planning Forest Recreation in Natural Protected Areas of Southern Durango, Mexico. Instituto de Ecología, A.C, 2016.

MLA aipamena

Pérez Verdín, Gustavo, et al. Planning Forest Recreation in Natural Protected Areas of Southern Durango, Mexico. Instituto de Ecología, A.C, 2016.