00371nam a2200145Ia 4500008004100000035000900041082002600050100002100076245003900097250000600136260006100142300000800203500000800211650000600219210723s9999||||xx |||||||||||||| ||und||  a8377  a621.381534BPUL / VEA  aVeatch, Henry C. 0aPulse And Switching Circuit Action  a-  aNew DelhibTata McGraw - Hill Publishing Company Limited  a470  a438  a-