APA

Levins R., . (1968). Evolution in Changing Environments : some theoretical explorations. Princeton, New Jersey: Princeton University Press.

Chicago

Levins Richard, . 1968. Evolution in Changing Environments : some theoretical explorations. Princeton, New Jersey: Princeton University Press.

Harvard

Levins R., . (1968). Evolution in Changing Environments : some theoretical explorations. Princeton, New Jersey: Princeton University Press.

MLA

Levins Richard, . Evolution in Changing Environments : some theoretical explorations. Princeton, New Jersey: Princeton University Press. 1968.