Lua APA (7ú heag.)
ebrary, Inc, & Hark, I. R. (2007). American cinema of the 1930s: Themes and variations. Rutgers University Press.
Lua i Stíl Chicago (17ú heag.)
ebrary, Inc, agus Ina Rae Hark. American Cinema of the 1930s: Themes and Variations. New Brunswick, N.J.: Rutgers University Press, 2007.
Lua MLA (9ú heag.)
ebrary, Inc, agus Ina Rae Hark. American Cinema of the 1930s: Themes and Variations. Rutgers University Press, 2007.
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