TY  - BOOK
AU  - Cleverdon, Cyril W.
TI  - ASLIB Cranfield research project: Report on the testing and analysis on an investigation into the comparative efficiency of indexing systems
U1  - 010.78 
PY  - 1962///
CY  - Cranfield
PB  - National Science Foundation
N1  - An Investigation Supported By A Grant To Aslib By The National Science Foundation
ER  -