Cita APA

Aguirre-Urreta, M. B., Suárez, M., de la Cruz, R., & Ramos, V. A. (2007). Ammonoids (Crioceratitidae, Hauterivian) from the Austral Basin, Chile. Web

Citación estilo Chicago

Aguirre-Urreta, Maria Beatriz, Manuel Suárez, Rita de la Cruz, and Victor Alberto Ramos. Ammonoids (Crioceratitidae, Hauterivian) From the Austral Basin, Chile. 2007.

Cita MLA

Aguirre-Urreta, Maria Beatriz, Manuel Suárez, Rita de la Cruz, and Victor Alberto Ramos. Ammonoids (Crioceratitidae, Hauterivian) From the Austral Basin, Chile. 2007.