TY  - RPRT
TI  - A selective roll-to-roll printer for producing duplicate microfilm copies. 
AU  - Strohlein, James N
PY  - 1970
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS TN 516
DO  - 10.6028/NBS.TN.516
ER  -