Paton, G. W., & Derham, D. P. (1972). A textbook of jurisprudence (4th ed.). Clarendon Press.
Dyfyniad Arddull ChicagoPaton, G. W., and David P. Derham. A Textbook of Jurisprudence. 4th ed. Oxford: Clarendon Press, 1972.
Dyfyniad MLAPaton, G. W., and David P. Derham. A Textbook of Jurisprudence. 4th ed. Clarendon Press, 1972.
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