Keller, G., Bartel, H., & Warrack, B. (1988). Statistics for management and economics: A systematic approach. Wadsworth Pub. Co.
Dyfyniad Arddull ChicagoKeller, Gerald, Henry Bartel, and Brian Warrack. Statistics for Management and Economics: A Systematic Approach. Belmont, Calif: Wadsworth Pub. Co, 1988.
Dyfyniad MLAKeller, Gerald, et al. Statistics for Management and Economics: A Systematic Approach. Wadsworth Pub. Co, 1988.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.