TY  - BOOK
AU  - Perry J W
AU  - Kjent Allen
TI  - Documentation and information retrival: an introduction to basic principles and cost analysis
U1  - 002 
PY  - 1957///
CY  - Ohio
PB  - Press of WEastern Reserve Uni.
KW  - Book production
KW  - Cost analysis
KW  - Documentation
KW  - Information retrieval
ER  -