Παραπομπή σε μορφή APA (7η εκδ.)

Agarwal, R. P., & Pang, P. Y. (1995). Opial Inequalities with Applications in Differential and Difference Equations. Kluwer.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Agarwal, Ravi P., και Peter Y.H Pang. Opial Inequalities with Applications in Differential and Difference Equations. Dordrecht: Kluwer, 1995.

Παραπομπή σε μορφή MLA (9th εκδ.)

Agarwal, Ravi P., και Peter Y.H Pang. Opial Inequalities with Applications in Differential and Difference Equations. Kluwer, 1995.