Cita APA (7th ed.)
Needles, B. E. (1981). Principles of accounting. Houghton Mifflin.
Cita Chicago (17th ed.)
Needles, Belverd E. Principles of Accounting. Boston: Houghton Mifflin, 1981.
Cita MLA (9th ed.)
Needles, Belverd E. Principles of Accounting. Houghton Mifflin, 1981.
Atenció: Aquestes cites poden no estar 100% correctes.