Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.