APA Citation

Gershwin, G. 1., & Portnoff, M. 1. (1956). George Gershwin piano duets. U.S.A.: Chappell & Co. Inc..

Chicago Style Citation

Gershwin, George 1898-1937, and Mischa 1901-1979 Portnoff. George Gershwin Piano Duets. U.S.A.: Chappell & Co. Inc., 1956.

MLA Citation

Gershwin, George 1898-1937, and Mischa 1901-1979 Portnoff. George Gershwin Piano Duets. U.S.A.: Chappell & Co. Inc., 1956.

Warning: These citations may not always be 100% accurate.