Cita APA (7a ed.)

Maynard Smith, J. (1986). The problems of biology. Oxford University Press.

Cita Chicago Style (17a ed.)

Maynard Smith, John. The Problems of Biology. Oxford: Oxford University Press, 1986.

Cita MLA (9a ed.)

Maynard Smith, John. The Problems of Biology. Oxford University Press, 1986.