TY  - BOOK
AU  - Kahn,Gilbert
AU  - Yerian,C.Theo
TI  - Progressive filing
U1  - 025.317 
PY  - 1955///]
CY  - New York
PB  - Gregg Pub. Division, McGraw-Hill
KW  - Indexing
KW  - Filing systems
KW  - MCE
N1  - First published by the Library Bureau in 1925 under title: Progressive indexing and filing for schools
ER  -