TY  - BOOK
AU  - Ranganathan S R
TI  - Reference service
T2  - Ranganathan series in library science; 8
U1  - 2:7, K1-;13 
PY  - 1989///
CY  - Banglore
PB  - Sarada Ranganathan Endowment for Library Science  
KW  - LIBRARY SCIENCE
N1  - rep. 2006
ER  -