Παραπομπή APA

Satyanarayana, V. (1998). Universal decimal classification: A practical primer. Ess Ess.

Παραπομπή Chicago Style

Satyanarayana, V.V.V. Universal Decimal Classification: A Practical Primer. New Delhi: Ess Ess, 1998.

Παραπομπή MLA

Satyanarayana, V.V.V. Universal Decimal Classification: A Practical Primer. Ess Ess, 1998.