Cita APA (7a ed.)

Ereshefsky, M. (1992). The units of evolution: Essays on the nature of species ([2nd printing].). MIT Press.

Cita Chicago Style (17a ed.)

Ereshefsky, Marc. The Units of Evolution: Essays on the Nature of Species. [2nd printing]. Cambridge, Mass. [etc.]: MIT Press, 1992.

Cita MLA (9a ed.)

Ereshefsky, Marc. The Units of Evolution: Essays on the Nature of Species. [2nd printing]. MIT Press, 1992.