TY  - RPRT
TI  - A critical review of measurement practices for the determination of pH and acidity of atmospheric precipitation 
AU  - Marienko, George
AU  - Koch, William F
PY  - 1984
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS IR 84-2866
DO  - 10.6028/NBS.IR.84-2866
ER  -