Cita APA (7th ed.)

Zill, D. G. (2001). Differential Equations: With boundary-value problems (5th ed.). Brooks/Cole.

Cita Chicago (17th ed.)

Zill, Dennis G. Differential Equations: With Boundary-value Problems. 5th ed. Pacific Grove: Brooks/Cole, 2001.

Cita MLA (9th ed.)

Zill, Dennis G. Differential Equations: With Boundary-value Problems. 5th ed. Brooks/Cole, 2001.