APA (7th ed.) Citation

Fittkau, E. J., Illies, J., Klinge, H., Schwabe, G. H., & Sioli, H. (1968). Biogeography and Ecology in South America. Springer Netherlands.

Chicago Style (17th ed.) Citation

Fittkau, E. J., J. Illies, H. Klinge, G. H. Schwabe, and H. Sioli. Biogeography and Ecology in South America. Dordrecht: Springer Netherlands, 1968.

MLA (9th ed.) Citation

Fittkau, E. J., et al. Biogeography and Ecology in South America. Springer Netherlands, 1968.