APA

Mayr E., . (1970). Populations, species, and evolution: an abridgment of Animal species and evolution. Cambridge, Mass: Belknap Press of Harvard University Press.

Chicago

Mayr Ernst, . 1970. Populations, species, and evolution: an abridgment of Animal species and evolution. Cambridge, Mass: Belknap Press of Harvard University Press.

Harvard

Mayr E., . (1970). Populations, species, and evolution: an abridgment of Animal species and evolution. Cambridge, Mass: Belknap Press of Harvard University Press.

MLA

Mayr Ernst, . Populations, species, and evolution: an abridgment of Animal species and evolution. Cambridge, Mass: Belknap Press of Harvard University Press. 1970.