APA (7th ed.) Citation

Gershwin, G., & Rubinstein, B. (1945). Summer time: From "Porgy and Bess". Gershwin Pub.

Chicago Style (17th ed.) Citation

Gershwin, George, and Beryl Rubinstein. Summer Time: From "Porgy and Bess". New York: Gershwin Pub, 1945.

MLA (9th ed.) Citation

Gershwin, George, and Beryl Rubinstein. Summer Time: From "Porgy and Bess". Gershwin Pub, 1945.