TY  - RPRT
TI  - Method for determining the resolving power of photographic lenses 
AU  - Washer, Francis E
AU  - Gardner, Irvine C
PY  - 1973
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS SP 374
DO  - 10.6028/NBS.SP.374
ER  -