Dougherty, C. (1980). Interest and Profit. Methuen & Co. Ltd.
Lua i Stíl Chicago (17ú heag.)Dougherty, Christopher. Interest and Profit. U.S.A: Methuen & Co. Ltd, 1980.
Lua MLA (9ú heag.)Dougherty, Christopher. Interest and Profit. Methuen & Co. Ltd, 1980.
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