Cita APA

Vera, E. I. (2009). Alienopteris livingstonensis gen. et sp. nov., enigmatic petrified tree fern stem (Cyatheales) from the Aptian Cerro Negro Formation, Antarctica. Web

Citación estilo Chicago

Vera, Ezequiel Ignacio. Alienopteris Livingstonensis Gen. Et Sp. Nov., Enigmatic Petrified Tree Fern Stem (Cyatheales) From the Aptian Cerro Negro Formation, Antarctica. 2009.

Cita MLA

Vera, Ezequiel Ignacio. Alienopteris Livingstonensis Gen. Et Sp. Nov., Enigmatic Petrified Tree Fern Stem (Cyatheales) From the Aptian Cerro Negro Formation, Antarctica. 2009.