APA (7th ed.) Citation

Gershwin, G., & Gershwin, I. (1930). They All Laughed. Alfred Publishing Co., Inc..

Chicago Style (17th ed.) Citation

Gershwin, George, and Ira Gershwin. They All Laughed. Louisville, United States: Alfred Publishing Co., Inc., 1930.

MLA (9th ed.) Citation

Gershwin, George, and Ira Gershwin. They All Laughed. Alfred Publishing Co., Inc., 1930.