Sharma, U. C. (1995). Infometer: Measuring library cost-effectiveness. Ess Ess Pub..
Dyfyniad Arddull ChicagoSharma, Umesh Chandra. Infometer: Measuring Library Cost-effectiveness. New Delhi: Ess Ess Pub., 1995.
Dyfyniad MLASharma, Umesh Chandra. Infometer: Measuring Library Cost-effectiveness. Ess Ess Pub., 1995.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.