TY  - BOOK
AU  - Saxena, R. S.
TI  - INFORMATION RETRIEVAL TECHNIQUES AND REFERENCE SOURCES & TOOLS IN PURE AND APPLIED SCIENCES
U1  - 025.52 
PY  - 1987///
CY  - Agra
PB  - Y. K. Pub.
KW  - Information Retrieval System -- Techniques
KW  - Libraries -- Reference Service
KW  - Science -- Information Techniques And Tools
ER  -