Boyce, W. E., & DiPrima, R. C. (1997). Elementary differential equations and boundary value problems (6th ed.). New York: John Wiley and Sons, Inc..
Παραπομπή Chicago StyleBoyce, William E., and Richard C. DiPrima. Elementary Differential Equations and Boundary Value Problems. 6th ed. New York: John Wiley and Sons, Inc., 1997.
Παραπομπή MLABoyce, William E., and Richard C. DiPrima. Elementary Differential Equations and Boundary Value Problems. 6th ed. New York: John Wiley and Sons, Inc., 1997.
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