Glaspell, S. Trifles: Susan Glaspell. Literature and gender.(1996).
Lua i Stíl Chicago (17ú heag.)Glaspell, Susan. "Trifles: Susan Glaspell." Literature and Gender.(1996) .
Lua MLA (8ú heag.)Glaspell, Susan. "Trifles: Susan Glaspell." Literature and Gender.(1996), .
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