Kohler, H., & Heinz Kohler. (2002). Statistics for business and economics: Microsoft excel enhanced. Cincinnati, Ohio: South-Western/Thomson Learning.
استشهاد بنمط شيكاغوKohler, Heinz, و Heinz Kohler. Statistics for Business and Economics: Microsoft Excel Enhanced. Cincinnati, Ohio: South-Western/Thomson Learning, 2002.
MLA استشهادKohler, Heinz, و Heinz Kohler. Statistics for Business and Economics: Microsoft Excel Enhanced. Cincinnati, Ohio: South-Western/Thomson Learning, 2002.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.