TY  - RPRT
TI  - Cost comparison of selected alternatives for preserving historic pension files 
AU  - Schofer, Ralph E
PY  - 1986
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS IR 86-3335
DO  - 10.6028/NBS.IR.86-3335
ER  -