Keller, G., Warrack, B., & Bartel, H. (1988). Statistics for management and economics: A systematic approach. Wadsworth Pub. Co.
Citazione stile Chigago Style (17a edizione)Keller, Gerald, Brian Warrack, e Henry Bartel. Statistics for Management and Economics: A Systematic Approach. Belmont, Calif: Wadsworth Pub. Co, 1988.
Citatione MLA (9a ed.)Keller, Gerald, et al. Statistics for Management and Economics: A Systematic Approach. Wadsworth Pub. Co, 1988.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.