Farrell, J. R. (1896). Hearts of gold: A drama in four acts. Ames.
Lua i Stíl Chicago (17ú heag.)Farrell, John Rupert. Hearts of Gold: A Drama in Four Acts. Clyde, Ohio: Ames, 1896.
Lua MLA (8ú heag.)Farrell, John Rupert. Hearts of Gold: A Drama in Four Acts. Ames, 1896.
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