TY  - RPRT
TI  - Publications of the National Bureau of Standards 1970 
AU  - Oberholtzer, Betty L
PY  - 1971
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS SP 305supp2
DO  - 10.6028/NBS.SP.305supp2
ER  -