Keller, G., Warrack, B., & Bartel, H. (1988). Statistics for management and economics: A systematic approach. Wadsworth Publishing Company.
Citação norma ChicagoKeller, Gerald, Brian Warrack, and Henry Bartel. Statistics for Management and Economics: A Systematic Approach. Belmont, California: Wadsworth Publishing Company, 1988.
Citação norma MLAKeller, Gerald, et al. Statistics for Management and Economics: A Systematic Approach. Wadsworth Publishing Company, 1988.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.