Cita APA

Gray, J. C. (1963). The nature and sources of the law (2nd ed.). Beacon Press.

Chicago Edition Citation

Gray, John Chipman. The Nature and Sources of the Law. 2nd ed. Boston: Beacon Press, 1963.

Cita MLA

Gray, John Chipman. The Nature and Sources of the Law. 2nd ed. Beacon Press, 1963.