Needles, B. E. (1989). Financial accounting (3rd ed.). Houghton Mifflin.
Lua i Stíl Chicago (17ú heag.)Needles, Belverd E. Financial Accounting. 3rd ed. Boston: Houghton Mifflin, 1989.
Lua MLA (9ú heag.)Needles, Belverd E. Financial Accounting. 3rd ed. Houghton Mifflin, 1989.
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