APA Edition Citation

Zill, D. G., & Cullen, M. (1986). Differential equations with boundary value Problems. (4th ed.).

Chicago Edition Citation

Zill, Dennis G., and Michael Cullen. Differential Equations with Boundary Value Problems. 4th ed. 1986.

MLA Edition Citation

Zill, Dennis G., and Michael Cullen. Differential Equations with Boundary Value Problems. 4th ed. 1986.

Warning: These citations may not always be 100% accurate.