APA

Posner R. A., . (1981). The economics of justice. Cambridge, Mass: Harvard University Press.

Chicago

Posner Richard A, . 1981. The economics of justice. Cambridge, Mass: Harvard University Press.

Harvard

Posner R. A., . (1981). The economics of justice. Cambridge, Mass: Harvard University Press.

MLA

Posner Richard A, . The economics of justice. Cambridge, Mass: Harvard University Press. 1981.