एपीए उद्धरण

Sagar, P. V. (2005). Library classification. Ansari Road, New Delhi: Sonali Publications.

शिकागो स्टाइल उद्धरण

Sagar, Putumbaka Vidya. Library Classification. Ansari Road, New Delhi: Sonali Publications, 2005.

एमएलए उद्धरण

Sagar, Putumbaka Vidya. Library Classification. Ansari Road, New Delhi: Sonali Publications, 2005.