APA

Lieberman A., Páez Aguilar J. M., Rodríguez Mahecha J. V. & Wiley J.Reintroduction of the Andean condor into Colombia, South America: 1989-1991. : .

Chicago

Lieberman Alan, Páez Aguilar Juan Manuel, Rodríguez Mahecha José Vicente and Wiley Jim.Reintroduction of the Andean condor into Colombia, South America: 1989-1991. : .

Harvard

Lieberman A., Páez Aguilar J. M., Rodríguez Mahecha J. V. and Wiley J.Reintroduction of the Andean condor into Colombia, South America: 1989-1991. : .

MLA

Lieberman Alan, Páez Aguilar Juan Manuel, Rodríguez Mahecha José Vicente and Wiley Jim.: . .