Kumar, P. S. G. (2004). Library and users: Theory and practice. B R Publishing Corporation.
Chicago Style aipamenaKumar, P. S. G. Library and Users: Theory and Practice. New Delhi: B R Publishing Corporation, 2004.
MLA aipamenaKumar, P. S. G. Library and Users: Theory and Practice. B R Publishing Corporation, 2004.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.