APA (7th ed.) Citation

Margulis, L. (1998). Symbiotic planet: A new look at evolution. Basic Books.

Chicago Style (17th ed.) Citation

Margulis, Lynn. Symbiotic Planet: A New Look at Evolution. New York: Basic Books, 1998.

MLA (9th ed.) Citation

Margulis, Lynn. Symbiotic Planet: A New Look at Evolution. Basic Books, 1998.