NEEDLES, B. E., & NEEDLES, B. E. (1989). Financial Accounting Belferd E. Needles. Houghton Mifflin.
Lua i Stíl Chicago (17ú heag.)NEEDLES, Belverd E., agus Belverd E. NEEDLES. Financial Accounting Belferd E. Needles. Houghton Mifflin, 1989.
Lua MLA (8ú heag.)NEEDLES, Belverd E., agus Belverd E. NEEDLES. Financial Accounting Belferd E. Needles. Houghton Mifflin, 1989.
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