Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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