Zill, D. G. (2009). A First Course in Differential Equations: With modeling applications (9th ed.). Brooks/Cole.
Citação norma ChicagoZill, Dennis G. A First Course in Differential Equations: With Modeling Applications. 9th ed. Pacific Grove: Brooks/Cole, 2009.
Citação norma MLAZill, Dennis G. A First Course in Differential Equations: With Modeling Applications. 9th ed. Brooks/Cole, 2009.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.