Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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