Barrow, K. (1985). Helen Hayes: First lady of the American theatre. Doubleday.
Lua i Stíl Chicago (17ú heag.)Barrow, Kenneth. Helen Hayes: First Lady of the American Theatre. Garden City, New York: Doubleday, 1985.
Lua MLA (8ú heag.)Barrow, Kenneth. Helen Hayes: First Lady of the American Theatre. Doubleday, 1985.
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