Παραπομπή APA

Singh S.K. Business mathematics/2e (2nd rev ed.). Brijwasi book distributors and publishers.

Παραπομπή Chicago Style

Singh S.K. Business Mathematics/2e. 2nd rev ed. New Delhi: Brijwasi book distributors and publishers.

Παραπομπή MLA

Singh S.K. Business Mathematics/2e. 2nd rev ed. Brijwasi book distributors and publishers.