Cita APA (7th ed.)

Gardner, R. D. (1978). Horatio Alger: Or, The American hero era. Arco Pub.

Cita Chicago (17th ed.)

Gardner, Ralph D. Horatio Alger: Or, The American Hero Era. New York: Arco Pub, 1978.

Cita MLA (9th ed.)

Gardner, Ralph D. Horatio Alger: Or, The American Hero Era. Arco Pub, 1978.