Cita APA (7a ed.)

Veblen, T. T., Young, K. R., & Orme, A. R. (2007). The physical geography of South America. Oxford University Press.

Cita Chicago Style (17a ed.)

Veblen, Thomas T., Kenneth R. Young, y A. R. Orme. The Physical Geography of South America. Oxford ; New York: Oxford University Press, 2007.

Cita MLA (8a ed.)

Veblen, Thomas T., et al. The Physical Geography of South America. Oxford University Press, 2007.