Levin, R. I. (1995). Statistics for management. Prentice-Hall of India.
Dyfyniad Arddull ChicagoLevin, Richard. I. Statistics for Management. New Delhi: Prentice-Hall of India, 1995.
Dyfyniad MLALevin, Richard. I. Statistics for Management. Prentice-Hall of India, 1995.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.