00376nam 2229649 450000100060000000300230000600500090002900800410003808200130007902000220009210000200011426000490013430000170018324500320020029649StarLibrary Marc Built20180420201711 ||||| |||||||||||amh  a539.7222 a978-81-8356-417-5 aShalender Singh bNew Delhi: Discovery Publishing House c2009 a353p: 24 c.m aX - Rays And Wave Mechanics