Cita APA (7a ed.)

Gershwin, G., & Gershwin, I. (1964). What causes that? Alfred Publishing Co., Inc..

Cita Chicago Style (17a ed.)

Gershwin, George, y Ira Gershwin. What Causes That? Louisville, United States: Alfred Publishing Co., Inc., 1964.

Cita MLA (9a ed.)

Gershwin, George, y Ira Gershwin. What Causes That? Alfred Publishing Co., Inc., 1964.