TY - BOOK AU - Bird,J.O. AU - May,A.J.C. TI - Electrical principles 3 checkbook T2 - Butterworth's "checkbook" series SN - 0408006013 (pbk.) : AV - TK145 .B614 U1 - 621.3 BIE/3 19 PY - 1981/// CY - London, Boston PB - Butterworth KW - Electrical engineering N1 - Cataloging based on CIP information; Includes index ER -