Παραπομπή APA

Grewal, B. S., & Grewal, J. S. (2012). Higher engineering mathematics (42nd ed.). Khanna publishers.

Παραπομπή Chicago Style

Grewal, B S., και J S. Grewal. Higher Engineering Mathematics. 42nd ed. New Delhi: Khanna publishers, 2012.

Παραπομπή MLA

Grewal, B S., και J S. Grewal. Higher Engineering Mathematics. 42nd ed. Khanna publishers, 2012.