TY  - RPRT
TI  - Publications of the National Bureau of Standards 1975 Catalog 
AU  - Hurdle, Betty L
PY  - 1976
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS SP 305supp7
DO  - 10.6028/NBS.SP.305supp7
ER  -