Lua APA (7ú heag.)
Howard, L. R. (1976). Principles of auditing (19th ed.). ELBS.
Lua i Stíl Chicago (17ú heag.)
Howard, Leslie R. Principles of Auditing. 19th ed. London: ELBS, 1976.
Lua MLA (9ú heag.)
Howard, Leslie R. Principles of Auditing. 19th ed. ELBS, 1976.
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