Παραπομπή APA

GREWAL.B.S. (2012). Higher engineering mathematics (42nd.). Khanna publishers.

Παραπομπή Chicago Style

GREWAL.B.S. Higher Engineering Mathematics. 42nd. newdelhi: Khanna publishers, 2012.

Παραπομπή MLA

GREWAL.B.S. Higher Engineering Mathematics. 42nd. Khanna publishers, 2012.