APA

Gray John Chipman,, . (1924). The nature and sources of the law. New York: Macmillan Publishing Co.

Chicago

Gray John Chipman,, . 1924. The nature and sources of the law. New York: Macmillan Publishing Co.

Harvard

Gray John Chipman,, . (1924). The nature and sources of the law. New York: Macmillan Publishing Co.

MLA

Gray John Chipman,, . The nature and sources of the law. New York: Macmillan Publishing Co. 1924.