Knight, A. H. J. (2001). "It ain't necessarily so that it ain't necessarily so": African American recordings of Porgy and Bess as film and cultural criticism.
Chicago-Zitierstil (17. Ausg.)Knight, Arthur Harold John. "It Ain't Necessarily so That It Ain't Necessarily so": African American Recordings of Porgy and Bess as Film and Cultural Criticism. 2001.
MLA-Zitierstil (9. Ausg.)Knight, Arthur Harold John. "It Ain't Necessarily so That It Ain't Necessarily so": African American Recordings of Porgy and Bess as Film and Cultural Criticism. 2001.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.