Cita APA (7a ed.)

Gershwin, G., Gershwin, I., & Heyward, D. (1992). Selections from Porgy and Bess. Warner Bros. Publications.

Cita Chicago Style (17a ed.)

Gershwin, George, Ira Gershwin, y DuBose Heyward. Selections from Porgy and Bess. Secaucus, N.J.: Warner Bros. Publications, 1992.

Cita MLA (9a ed.)

Gershwin, George, et al. Selections from Porgy and Bess. Warner Bros. Publications, 1992.