TY  - BOOK
AU  - Cleverdon, C W
TI  - Report on the first stage of an investigation into the comparative efficiency of indexing systems 
T2  - ASLIB cranfield research project
PY  - 1968///
CY  - Cranfield
PB  - The College of Aeronautics
KW  - Comparative efficiency indexing
KW  - General objectives
KW  - Schedules
KW  - Index
ER  -