TY  - BOOK
AU  - Ranganathan, S.R. 
AU  -  Gopinath, M.A.
TI  - Prolegomena to library classification Vol. 1 [3rd ed.]
SN  - 81-7000-469-1 
U1  - 025.43 
PY  - 1989///
CY  - New Delhi
PB  - Ess Ess Publications
KW  - Classification; Library Science
ER  -