APA

Silvius K. M., Bodmer R. E. & Fragoso J. M. V. (2004). People in nature. New York, New York, United States: Columbia University Press.

Chicago

Silvius Kirsten M, Bodmer Richard E and Fragoso José M V. 2004. People in nature. New York, New York, United States: Columbia University Press.

Harvard

Silvius K. M., Bodmer R. E. and Fragoso J. M. V. (2004). People in nature. New York, New York, United States: Columbia University Press.

MLA

Silvius Kirsten M, Bodmer Richard E and Fragoso José M V. People in nature. New York, New York, United States: Columbia University Press. 2004.