TY  - BOOK
AU  - Jonker,Frederick
TI  - Indexing theory, indexing methods and search devices 
U1  - 029.5 JON  
PY  - 1964///.
CY  - New York : 
PB  - The Scarecrow Press, Inc. 
KW  - Indexing
KW  - Information retrieval
ER  -