APA

Soulé M. E., . (1987). Viable populations for conservation. Cambridge: Cambridge University Press.

Chicago

Soulé Michael E, . 1987. Viable populations for conservation. Cambridge: Cambridge University Press.

Harvard

Soulé M. E., . (1987). Viable populations for conservation. Cambridge: Cambridge University Press.

MLA

Soulé Michael E, . Viable populations for conservation. Cambridge: Cambridge University Press. 1987.