TY  - BOOK
AU  - Lancaster,F.Wilfrid
TI  - Evaluation of the MEDLARS demand search service
AV  - Z699.5.M39 L3
U1  - 025.066 1 LAN 
PY  - 1968///
CY  - [Washington]
PB  - U.S. Dept. of Health, Education, and Welfare, Public Health Service
KW  - MEDLARS
ER  -