Tohutoro APA (7th ed.)

Zill, D. G. (2018). Differential equations with boundary-value problems (9th ed.). Cengage Learning.

Tohutoru Kātū Chicago (17th ed.)

Zill, Dennis G. Differential Equations with Boundary-value Problems. 9th ed. Boston, MA: Cengage Learning, 2018.

Tohutoro MLA (9th ed.)

Zill, Dennis G. Differential Equations with Boundary-value Problems. 9th ed. Cengage Learning, 2018.