APA
Walker R J, Walker M G, . (1972). The English legal system. London: Butterworths.
Chicago
Walker R J, Walker M G, . 1972. The English legal system. London: Butterworths.
Harvard
Walker R J, Walker M G, . (1972). The English legal system. London: Butterworths.
MLA
Walker R J, Walker M G, . The English legal system. London: Butterworths. 1972.