Fess, P. E., Niswonger, C. R., & Warren, C. S. (1981). Accounting principles (13th ed.). South-Western Pub. Co..
Lua i Stíl Chicago (17ú heag.)Fess, Philip E., C. Rollin Niswonger, agus Carl S. Warren. Accounting Principles. 13th ed. Cincinnati: South-Western Pub. Co., 1981.
Lua MLA (8ú heag.)Fess, Philip E., et al. Accounting Principles. 13th ed. South-Western Pub. Co., 1981.
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