Dumont, F. (1876). The polar bear: An Ethiopian farce in one scene. R.M. De Witt.
Lua i Stíl Chicago (17ú heag.)Dumont, Frank. The Polar Bear: An Ethiopian Farce in One Scene. New York: R.M. De Witt, 1876.
Lua MLA (8ú heag.)Dumont, Frank. The Polar Bear: An Ethiopian Farce in One Scene. R.M. De Witt, 1876.
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