Sagar, P. V. (2005). Library classification. Ansari Road, New Delhi: Sonali Publications.
Trích dẫn kiểu ChicagoSagar, Putumbaka Vidya. Library Classification. Ansari Road, New Delhi: Sonali Publications, 2005.
ציטוט MLASagar, Putumbaka Vidya. Library Classification. Ansari Road, New Delhi: Sonali Publications, 2005.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.