Dyfyniad APA

E. Ramírez Albores, J. (2007). Bird diversity and conservation of Alto Balsas (Southwestern Puebla), Mexico.

Dyfyniad Arddull Chicago

E. Ramírez Albores, Jorge. Bird Diversity and Conservation of Alto Balsas (Southwestern Puebla), Mexico. 2007.

Dyfyniad MLA

E. Ramírez Albores, Jorge. Bird Diversity and Conservation of Alto Balsas (Southwestern Puebla), Mexico. 2007.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.