TY  - RPRT
TI  - Circular of the Bureau of Standards no. 22 2nd edition: standard specifications for transformers, oil-immersed, self-cooled, 60-cycle, 2200 volts
PY  - 1911
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS CIRC 22e2
DO  - 10.6028/NBS.CIRC.22e2
ER  -