APA

Pope S. J., . (1987). The evolution of altruism and the ordering of love. Washington: Georgetown University Press.

Chicago

Pope Stephen J, . 1987. The evolution of altruism and the ordering of love. Washington: Georgetown University Press.

Harvard

Pope S. J., . (1987). The evolution of altruism and the ordering of love. Washington: Georgetown University Press.

MLA

Pope Stephen J, . The evolution of altruism and the ordering of love. Washington: Georgetown University Press. 1987.