APA (7th ed.) Citation

Hart, K. D. (1967). Visualized problems of American democracy (New ed.). Oxford Book.

Chicago Style (17th ed.) Citation

Hart, Kenneth Darius. Visualized Problems of American Democracy. New ed. New York: Oxford Book, 1967.

MLA (9th ed.) Citation

Hart, Kenneth Darius. Visualized Problems of American Democracy. New ed. Oxford Book, 1967.