Tubbs, A. L. (1916). The heart of a hero: A domestic drama in four acts. Penn.
Lua i Stíl Chicago (17ú heag.)Tubbs, Arthur Lewis. The Heart of a Hero: A Domestic Drama in Four Acts. Philadelphia: Penn, 1916.
Lua MLA (8ú heag.)Tubbs, Arthur Lewis. The Heart of a Hero: A Domestic Drama in Four Acts. Penn, 1916.
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