Armstrong, B. (2003). Brief calculus: Solving problems in business, economics, and the social and behavioral science. New Jersey: Wiley.
Παραπομπή Chicago StyleArmstrong, Bill. Brief Calculus: Solving Problems in Business, Economics, and the Social and Behavioral Science. New Jersey: Wiley, 2003.
Παραπομπή MLAArmstrong, Bill. Brief Calculus: Solving Problems in Business, Economics, and the Social and Behavioral Science. New Jersey: Wiley, 2003.
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