BS 171: 1970: Specification for power transformers
- 3rd rev. ed.
- London BSI 1970
- viii, 75p.
ISBN 0 580 05547 7
BS 171: 1970
BRITISH STANDARDS
TRANSFORMERS-Standards
ISBN 0 580 05547 7
BS 171: 1970
BRITISH STANDARDS
TRANSFORMERS-Standards