Cita APA

Sparks, E. S., & Sparks, E. S. (1932). History and theory of agricultural credit in the United States. New York, New York: T. Y. Crowell.

Citación estilo Chicago

Sparks, Earl Sylvester, y Earl Sylvester Sparks. History and Theory of Agricultural Credit in the United States. New York, New York: T. Y. Crowell, 1932.

Cita MLA

Sparks, Earl Sylvester, y Earl Sylvester Sparks. History and Theory of Agricultural Credit in the United States. New York, New York: T. Y. Crowell, 1932.