Cita APA (7a ed.)

Gavian, R. W., & Hamm, W. A. (1957). The American story. D.C. Heath.

Cita Chicago Style (17a ed.)

Gavian, Ruth Wood, y William Albert Hamm. The American Story. Boston: D.C. Heath, 1957.

Cita MLA (8a ed.)

Gavian, Ruth Wood, y William Albert Hamm. The American Story. D.C. Heath, 1957.