Cita APA

Cordova, A., & Parra, C. d. l. (2007). A barrier to our shared environment: The border fence between the United States and Mexico. México: El Colegio de la Frontera Norte.

Citación estilo Chicago

Cordova, Ana, y Carlos de la Parra. A Barrier to Our Shared Environment: The Border Fence between the United States and Mexico. México: El Colegio de la Frontera Norte, 2007.

Cita MLA

Cordova, Ana, y Carlos de la Parra. A Barrier to Our Shared Environment: The Border Fence between the United States and Mexico. México: El Colegio de la Frontera Norte, 2007.