APA (7th ed.) Citation

Fittkau, E. J., Illies, J., Klinge, H., Schwabe, G. H., & Sioli, H. (1969). Biogeography and ecology in south America. W. Junk N. V.

Chicago Style (17th ed.) Citation

Fittkau, E. J., J. Illies, H. Klinge, G. H. Schwabe, and H. Sioli. Biogeography and Ecology in South America. Amsterdam: W. Junk N. V, 1969.

MLA (9th ed.) Citation

Fittkau, E. J., et al. Biogeography and Ecology in South America. W. Junk N. V, 1969.