Παραπομπή σε μορφή APA (7η εκδ.)

Zill, D. G. (1997). A first course in differential equations with modeling applications (6th ed.). Brooks/Cole.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Zill, Dennis G. A First Course in Differential Equations with Modeling Applications. 6th ed. Pacific Grove: Brooks/Cole, 1997.

Παραπομπή σε μορφή MLA (8th εκδ.)

Zill, Dennis G. A First Course in Differential Equations with Modeling Applications. 6th ed. Brooks/Cole, 1997.