Παραπομπή APA

Sury, B. (2003). Congruence subgroup problem: An elementary approach aimed at applications. Hindustan Book Agency.

Παραπομπή Chicago Style

Sury, B. Congruence Subgroup Problem: An Elementary Approach Aimed at Applications. New Delhi: Hindustan Book Agency, 2003.

Παραπομπή MLA

Sury, B. Congruence Subgroup Problem: An Elementary Approach Aimed at Applications. Hindustan Book Agency, 2003.