ACZEL, A. D. (1989). Complete business statistics. Irwin.
Cita Chicago (17th ed.)ACZEL, Amir D. Complete Business Statistics. Homewood: Irwin, 1989.
Cita MLA (9th ed.)ACZEL, Amir D. Complete Business Statistics. Irwin, 1989.
Atenció: Aquestes cites poden no estar 100% correctes.