Keller, G. (2017). Statistics for management and: Economics. Cengage learning.
Citazione stile Chigago Style (17a edizione)Keller, Gerald. Statistics for Management and: Economics. Delhi: Cengage learning, 2017.
Citatione MLA (9a ed.)Keller, Gerald. Statistics for Management and: Economics. Cengage learning, 2017.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.