TY  - BOOK
AU  - Aitchison. T M
AU  -  Hall. Angela M
TI  - Laboratory evaluation of printed indexes
U1  - 2:55:f, L3.2 (2) 
PY  - 1973///
CY  - London
PB  - Institution of electrical engineers    
KW  - LIBRARY SCIENCE
N1  - Contents Pt ll : Results and discussion of methodology
ER  -