Cita APA (7th ed.)

Walker, D. M. (1980). The Oxford companion to law. Clarendon Pr.

Cita Chicago (17th ed.)

Walker, David M. The Oxford Companion to Law. Oxford: Clarendon Pr, 1980.

Cita MLA (9th ed.)

Walker, David M. The Oxford Companion to Law. Clarendon Pr, 1980.