Παραπομπή σε μορφή APA (7η εκδ.)

Simmons George Finlay & Robertson John S. (1991). Differential equations, with applications and historical notes (2nd ed.). McGraw-Hill.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Simmons George Finlay και Robertson John S. Differential Equations, with Applications and Historical Notes. 2nd ed. McGraw-Hill, 1991.

Παραπομπή σε μορφή MLA (8th εκδ.)

Simmons George Finlay και Robertson John S. Differential Equations, with Applications and Historical Notes. 2nd ed. McGraw-Hill, 1991.