TY  - BOOK
ED  - A Pitman Programmed Text
TI  - Filing and Indexing
SN  - 0273314564
U1  - 029.5 P685f 
PY  - 1971///
CY  - England
PB  - Unwin Brothers Limited 
N2  - Programmed Learning.
The Alphabetical Sustem.
Maintaining Files
ER  -