APA (7th ed.) Citation

Gregory, C. O. (1961). Labor and the law (2nd rev. ed.). W. W. Norton.

Chicago Style (17th ed.) Citation

Gregory, Charles O. Labor and the Law. 2nd rev. ed. New York: W. W. Norton, 1961.

MLA (9th ed.) Citation

Gregory, Charles O. Labor and the Law. 2nd rev. ed. W. W. Norton, 1961.