TY  - RPRT
TI  - NBS portable ambient particulate sampler 
AU  - Fletcher, Robert A
AU  - Bright, David S
PY  - 1983
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS IR 82-2561
DO  - 10.6028/NBS.IR.82-2561
ER  -