Cita APA (7a ed.)

Parrington, V. L. (1954). Main currents in American Thought. A Harvest Book.

Cita Chicago Style (17a ed.)

Parrington, Vernon Louis. Main Currents in American Thought. New York: A Harvest Book, 1954.

Cita MLA (8a ed.)

Parrington, Vernon Louis. Main Currents in American Thought. A Harvest Book, 1954.