Cita APA (7th ed.)

Leopold, R. W., & Hardlin, O. (1954). Elihu Root and the conservative tradition. Little, Brown.

Cita Chicago (17th ed.)

Leopold, Richard William, i Oscar Hardlin. Elihu Root and the Conservative Tradition. Boston: Little, Brown, 1954.

Cita MLA (9th ed.)

Leopold, Richard William, i Oscar Hardlin. Elihu Root and the Conservative Tradition. Little, Brown, 1954.