Zill, D. G. (2009). A First Course in Differential Equations: With modeling applications (9th ed.). Brooks/Cole.
Citazione stile Chigago Style (17a edizione)Zill, Dennis G. A First Course in Differential Equations: With Modeling Applications. 9th ed. Pacific Grove: Brooks/Cole, 2009.
Citatione MLA (9a ed.)Zill, Dennis G. A First Course in Differential Equations: With Modeling Applications. 9th ed. Brooks/Cole, 2009.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.