Rosenberg, R. R. (1951). Essentials of business mathematics: Principles and practice (5th ed.). Gregg Pub.
Cita Chicago (17th ed.)Rosenberg, Reuben Robert. Essentials of Business Mathematics: Principles and Practice. 5th ed. New York: Gregg Pub, 1951.
Cita MLA (9th ed.)Rosenberg, Reuben Robert. Essentials of Business Mathematics: Principles and Practice. 5th ed. Gregg Pub, 1951.
Atenció: Aquestes cites poden no estar 100% correctes.