McCready, R. R. (1969). Solving business problems with calculators. California: Wadsworth publishing company.
Παραπομπή Chicago StyleMcCready, Richard R. Solving Business Problems With Calculators. California: Wadsworth publishing company, 1969.
Παραπομπή MLAMcCready, Richard R. Solving Business Problems With Calculators. California: Wadsworth publishing company, 1969.
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