Boyce, W. E., & DiPrima, R. C. (1969). Elementary differential equations and boundary value problems (2nd ed.). New York, NY.: John Wiley & Sons.
Παραπομπή Chicago StyleBoyce, William E., and Richard C. DiPrima. Elementary Differential Equations and Boundary Value Problems. 2nd ed. New York, NY.: John Wiley & Sons, 1969.
Παραπομπή MLABoyce, William E., and Richard C. DiPrima. Elementary Differential Equations and Boundary Value Problems. 2nd ed. New York, NY.: John Wiley & Sons, 1969.
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