Reference Services

This is very good artical.

AUTHOR: Carol Tenopir and Lisa A. Ennis
TITLE: reference services in the new millennium
SOURCE: Online (Weston, Conn.) 25 no4 40-5 Jul/Aug 2001

https://docs.google.com/viewer?a=v&q=cache:_nxua_2Edz4J:citeseerx.ist.psu.edu/viewdoc/download?doi%3D10.1.1.167.1467%26rep%3Drep1%26type%3Dpdf+how+many+reference+services+tools+in+library+with+new+era&hl=en&gl=pk&pid=bl&srcid=ADGEESifPyZBd8uhQTmcqWEl5m291m2nge4KBSG22Akzpvfyt9IU-HiZvQ0fppXO3fournJqOSr2qDIcnGYZ6g9wb1SuDwp1RWGWBT5QgUycXX9NEyjGnTZoSC7nzXywPqaJQ0cNqhXd&sig=AHIEtbTYvT4yExrkhvtN7pT3wnk6QyHdUQ