Παραπομπή σε μορφή APA (7η εκδ.)

Zill, D. G. (2001). A first course in differential equations with modeling applications (7th edition.). Brooks/Cole Thomson Learning.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Zill, Dennis G. A First Course in Differential Equations with Modeling Applications. 7th edition. Pacific Grove, CA: Brooks/Cole Thomson Learning, 2001.

Παραπομπή σε μορφή MLA (8th εκδ.)

Zill, Dennis G. A First Course in Differential Equations with Modeling Applications. 7th edition. Brooks/Cole Thomson Learning, 2001.