Keller, G. (2009). Managerial statistics abbeviated. Australia: South-Western /Cengage Learning.
استشهاد بنمط شيكاغوKeller, Gerald. Managerial Statistics Abbeviated. Australia: South-Western /Cengage Learning, 2009.
MLA استشهادKeller, Gerald. Managerial Statistics Abbeviated. Australia: South-Western /Cengage Learning, 2009.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.