00276nam a2200109 a 450000500170000000800410001704100080005810000190006624500400008526400310012530000100015620260717072122.0260701s1975    ii            000 0 eng d  aeng1 aGambhir, S. Y.10aPractical physics /cGambhir, S. Y. 1bNarendra Prakashan,c1975.  a84 p.