00350    a2200121   450000500170000002000210001708200190003810000220005724500540007926400580013330000250019152600120021620260625143527.0  a978-81-8356-8449  a530 S5313 20111 aShama, Ajit kumar  aTextbook of modern physics / cAjit Kumar Sharma  1aIndia : bDiscovery Publishing House PVT. Ltd. c2011  a323 pages ; c21 cm   a500-599