Mason, R. D. (1990). Statistical techniques in Business and economics: / Robert D. Mason, Douglas A. Lind (7th ed.). Irwin.
Cita Chicago (17th ed.)Mason, Robert D. Statistical Techniques in Business and Economics: / Robert D. Mason, Douglas A. Lind. 7th ed. Homewood, Il.: Irwin, 1990.
Cita MLA (9th ed.)Mason, Robert D. Statistical Techniques in Business and Economics: / Robert D. Mason, Douglas A. Lind. 7th ed. Irwin, 1990.
Atenció: Aquestes cites poden no estar 100% correctes.