TY  - RPRT
TI  - Safety rules for the installation and maintenance of electrical supply and communication lines: comprising part 2 of the fourth edition national electrical safety code 
PY  - 1927
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS HB 10
DO  - 10.6028/NBS.HB.10
ER  -