Cita APA

Fittkau, E. J., Illies, J., Klinge, H., Schwabe, G. H., & Sioli, H. (1968). Biogeography and ecology in South América. W. Junk N. V..

Citación estilo Chicago

Fittkau, E. J., J. Illies, H. Klinge, G. H. Schwabe, and H. Sioli. Biogeography and Ecology in South América. The Hague: W. Junk N. V., 1968.

Cita MLA

Fittkau, E. J., et al. Biogeography and Ecology in South América. The Hague: W. Junk N. V., 1968.