APA aipamena

Tinajero, R., & Rodríguez Estrella, R. (2011). A red-tailed hawk with an abnormal bill, a noteworthy record in Baja California Sur, Mexico. Instituto de Ecología, A.C.

Chicago Style aipamena

Tinajero, Romeo, and Ricardo Rodríguez Estrella. A Red-tailed Hawk with an Abnormal Bill, a Noteworthy Record in Baja California Sur, Mexico. Instituto de Ecología, A.C, 2011.

MLA aipamena

Tinajero, Romeo, and Ricardo Rodríguez Estrella. A Red-tailed Hawk with an Abnormal Bill, a Noteworthy Record in Baja California Sur, Mexico. Instituto de Ecología, A.C, 2011.