Umeshchandra Sharma. (1995). Informeter: Measuring library cost effectiveness. Ess Ess.
Chicago Style aipamenaUmeshchandra Sharma. Informeter: Measuring Library Cost Effectiveness. New Delhi: Ess Ess, 1995.
MLA aipamenaUmeshchandra Sharma. Informeter: Measuring Library Cost Effectiveness. Ess Ess, 1995.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.