APA (7th ed.) Citation

Cooley, T. M. (1931). The general principles of constitutional law in the United States of America (4th ed.). Little, Brown.

Chicago Style (17th ed.) Citation

Cooley, Thomas McIntyre. The General Principles of Constitutional Law in the United States of America. 4th ed. Boston: Little, Brown, 1931.

MLA (9th ed.) Citation

Cooley, Thomas McIntyre. The General Principles of Constitutional Law in the United States of America. 4th ed. Little, Brown, 1931.