Gershwin, G., & Gershwin, I. (1964). The real American folk song (is a rag). Alfred Publishing Co., Inc..

Gershwin, George, and Ira Gershwin. The Real American Folk Song (is a Rag). Louisville, United States: Alfred Publishing Co., Inc., 1964.

Gershwin, George, and Ira Gershwin. The Real American Folk Song (is a Rag). Alfred Publishing Co., Inc., 1964.