Ingersoll, R. (1943). The battle is the pay-off. Harcourt, Brace and Company.
Lua i Stíl Chicago (17ú heag.)Ingersoll, Ralph. The Battle Is the Pay-off. New York: Harcourt, Brace and Company, 1943.
Lua MLA (8ú heag.)Ingersoll, Ralph. The Battle Is the Pay-off. Harcourt, Brace and Company, 1943.
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