BUSCADOR DE RECURSOS UNSAM

Cita APA (7a ed.)

Gershwin, G., Gershwin, I., & Heyward, D. (1935). Porgy and Bess: [an American folk opera]. Gershwin.

Cita Chicago Style (17a ed.)

Gershwin, George, Ira Gershwin, e DuBose Heyward. Porgy and Bess: [an American Folk Opera]. New York: Gershwin, 1935.

Cita MLA (8a ed.)

Gershwin, George, et al. Porgy and Bess: [an American Folk Opera]. Gershwin, 1935.