Derrick, W. R., & Grossman, S. I. (1997). Elementary differential equations (4th.ed.). Addison-Wesley.
Citación estilo ChicagoDerrick, William R., and Stanley I. Grossman. Elementary Differential Equations. 4th.ed. Massachusetts: Addison-Wesley, 1997.
Cita MLADerrick, William R., and Stanley I. Grossman. Elementary Differential Equations. 4th.ed. Addison-Wesley, 1997.
Warning: These citations may not always be 100% accurate.