TY  - RPRT
TI  - Installation and maintenance of electric supply and communication lines safety rules and discussion: comprising part 2, the discussion of part 2, the definitions, and the grounding rules of the fifth edition of the national electrical safety code 
PY  - 1949
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS HB 43
DO  - 10.6028/NBS.HB.43
ER  -