APA citiranje

Varela, A. (2011). General aspects of Irazú Volcano National Park.

Citación estilo Chicago

Varela, Alejandra. General Aspects of Irazú Volcano National Park. 2011.

MLA citiranje

Varela, Alejandra. General Aspects of Irazú Volcano National Park. 2011.

Opozorilo: Ti citati niso vedno 100% točni.