APA

Joyce G. H., . (1949). Principles of logic. New York: Longmans Green.

Chicago

Joyce George Hayward, . 1949. Principles of logic. New York: Longmans Green.

Harvard

Joyce G. H., . (1949). Principles of logic. New York: Longmans Green.

MLA

Joyce George Hayward, . Principles of logic. New York: Longmans Green. 1949.