एपीए उद्धरण

Chopra, H. S. (1999). Library information technology in modern era, libraries and librarians in new millennium. Common Wealth Publishers.

शिकागो स्टाइल उद्धरण

Chopra, H. S. Library Information Technology in Modern Era, Libraries and Librarians in New Millennium. New delhi: Common Wealth Publishers, 1999.

एमएलए उद्धरण

Chopra, H. S. Library Information Technology in Modern Era, Libraries and Librarians in New Millennium. Common Wealth Publishers, 1999.