APA

Zill Dennis G; Cullen Michael R, . (1993). Differential Equations With Boundary Value Problems. : .

Chicago

Zill Dennis G; Cullen Michael R, . 1993. Differential Equations With Boundary Value Problems. : .

Harvard

Zill Dennis G; Cullen Michael R, . (1993). Differential Equations With Boundary Value Problems. : .

MLA

Zill Dennis G; Cullen Michael R, . Differential Equations With Boundary Value Problems. : . 1993.