TY  - RPRT
TI  - 1963 supplement to screw-thread standards for federal services (parts I, II, & III) 
PY  - 1963
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS HB 28supp1963
DO  - 10.6028/NBS.HB.28supp1963
ER  -