Libby, R. (2004). Financial accounting [ada CD]Robert Libby, Patricia A. Libby, Daniel G. Short. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Libby, Robert. Financial Accounting [ada CD]Robert Libby, Patricia A. Libby, Daniel G. Short. McGraw-Hill, 2004.
Lua MLA (8ú heag.)Libby, Robert. Financial Accounting [ada CD]Robert Libby, Patricia A. Libby, Daniel G. Short. McGraw-Hill, 2004.
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