TY  - BOOK
AU  - Kahn,Gilbert
AU  -  Yerian,Theodore
AU  -  Stewart,Jeffrey R.
TI  - Progressive filing
U1  - 651.5 
PY  - 1961///
CY  - New York
PB  - Gregg Pub. Division, McGraw-Hill
KW  - Indexing
KW  - Filing systems
N1  - Includes index
ER  -