APA (7th ed.) Citation

Mayr, E. (1988). Toward a new philosophy of biology: Observations of an evolutionist. Belknap Press of Harvard University Press.

Chicago Style (17th ed.) Citation

Mayr, Ernst. Toward a New Philosophy of Biology: Observations of an Evolutionist. Cambridge, Mass.: Belknap Press of Harvard University Press, 1988.

MLA (9th ed.) Citation

Mayr, Ernst. Toward a New Philosophy of Biology: Observations of an Evolutionist. Belknap Press of Harvard University Press, 1988.