TY  - BOOK
AU  - Cassell Kay Ann
TI  - Reference information services in the 21st century :  An introduction
SN  - 978856047784 (pbk)
U1  - 2:7.1'P, P6;P9 
PY  - 2009///
CY  - London
PB  - Facet Publication UK     
KW  - LIBRARY SCIENCE
ER  -