Gershwin, G., & Meij, J. d. (1991). Two Songs from "Porgy & Bess": For solo voice, choir and band / George & Ira Gershwin. Arr. Johan de Meij (Full score.). Molenaar.
Chicago-viite (17. p.)Gershwin, George, ja Johan de Meij. Two Songs from "Porgy & Bess": For Solo Voice, Choir and Band / George & Ira Gershwin. Arr. Johan De Meij. Full score. Wormerveer, Holland: Molenaar, 1991.
MLA-viite (8. p.)Gershwin, George, ja Johan de Meij. Two Songs from "Porgy & Bess": For Solo Voice, Choir and Band / George & Ira Gershwin. Arr. Johan De Meij. Full score. Molenaar, 1991.
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