Cita APA

Gershwin, G. 1., Gershwin, I., Heyward, D. B. 1., & Warnick, C. (1955). Porgy and bess: Choral selection. New York, New York: Gershwin Publishing Corp..

Citación estilo Chicago

Gershwin, George 1898-1937, Ira Gershwin, Du Bose 1885-1940 Heyward, y Clay Warnick. Porgy and Bess: Choral Selection. New York, New York: Gershwin Publishing Corp., 1955.

Cita MLA

Gershwin, George 1898-1937, Ira Gershwin, Du Bose 1885-1940 Heyward, y Clay Warnick. Porgy and Bess: Choral Selection. New York, New York: Gershwin Publishing Corp., 1955.