APA (7th ed.) Citation
Keller, G., Bartel, H., & Warrack, B. (1988). Statistics for management and Economics: A systematic approach. Duxbury.
Chicago Style (17th ed.) Citation
Keller, Gerald, Henry Bartel, and Brian Warrack. Statistics for Management and Economics: A Systematic Approach. Belmont: Duxbury, 1988.
MLA (9th ed.) Citation
Keller, Gerald, et al. Statistics for Management and Economics: A Systematic Approach. Duxbury, 1988.
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