APA (7th ed.) Citation

Gregory, C. O. (1958). Labor and the law (2. rev. ed.). Norton.

Chicago Style (17th ed.) Citation

Gregory, Charles O. Labor and the Law. 2. rev. ed. New York: Norton, 1958.

MLA (9th ed.) Citation

Gregory, Charles O. Labor and the Law. 2. rev. ed. Norton, 1958.