Petersen, G. M. a. G. (1956). Calculus, differential and integral, with problems and solutions. Littlefield.
Cita Chicago (17th ed.)Petersen, G. M. and Graesser. Calculus, Differential and Integral, with Problems and Solutions. Totowa, New Jersey: Littlefield, 1956.
Cita MLA (9th ed.)Petersen, G. M. and Graesser. Calculus, Differential and Integral, with Problems and Solutions. Littlefield, 1956.
Atenció: Aquestes cites poden no estar 100% correctes.