00296pam a2200121 a 4500020002400000041000500024082001100029100003600040245005600076250001100132260002300143300000800166  a978-81-317-1807-0c  h  a621.39  aHecht E. & Ganesan A.R.eAuthor  aOpticscHecht E. & Ganesan A.R.hTextual Documents   a4th Ed  bPearson Pub.c2017  a650