Petersen, G., & Graesser, R. (1958). Calculus: Differential and integral with problems and solutions. Ames: Littlefield, Adams.
Παραπομπή Chicago StylePetersen, G.M, and R.F Graesser. Calculus: Differential and Integral With Problems and Solutions. Ames: Littlefield, Adams, 1958.
Παραπομπή MLAPetersen, G.M, and R.F Graesser. Calculus: Differential and Integral With Problems and Solutions. Ames: Littlefield, Adams, 1958.
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