Willingham, J. . J. (1979). Auditing concepts and methods (3rd ed.). McGraw-Hill.
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Chicago-čujuhus (17. p.)
Willingham, John J. Auditing Concepts and Methods. 3rd ed. New York: McGraw-Hill, 1979.
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MLA-čujuhus (9. p.)
Willingham, John J. Auditing Concepts and Methods. 3rd ed. McGraw-Hill, 1979.
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