TY  - BOOK
AU  - Perry, J. W.
AU  - Kent, Allen
TI  - Documentation and information retrieval: an introduction to basic principles and cost analysis 
U1  - 010 
PY  - 1957///
CY  - Cleveland
PB  - Press of Western Reserve University
KW  - Information storage and retrieval systems
KW  - Documentation
N1  - Includes index

ER  -