PRINCIPLES OF DIRECT-CURRENT ELECTRICAL ENGG
BARR, J R
PRINCIPLES OF DIRECT-CURRENT ELECTRICAL ENGG - 2ND - LONDON THAMES AND HUDSON PUBLISHING COMPANY 1948 - X+986
PRINCIPLES OF DIRECT-CURRENT ELECTRICAL ENGG - 2ND - LONDON THAMES AND HUDSON PUBLISHING COMPANY 1948 - X+986