Cita APA (7th ed.)

Zill, D. G. (2009). A first course in differential equations with modeling applications: /Dennis G. Zill (9th ed.). CA : Books/ Cole.

Cita Chicago (17th ed.)

Zill, Dennis G. A First Course in Differential Equations with Modeling Applications: /Dennis G. Zill. 9th ed. Belmont: CA : Books/ Cole, 2009.

Cita MLA (9th ed.)

Zill, Dennis G. A First Course in Differential Equations with Modeling Applications: /Dennis G. Zill. 9th ed. CA : Books/ Cole, 2009.