Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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