00328nam a2200121 a 450000500170000002000150001708200180003210000180005024500680006825000120013626000370014830000210018520251203110632.0  a8178000180  a621.3678bRED  aReddy, M.Anji  aTextbook of Remote Sensing and Geographical Information Systems  a2nd ed.  aHyderabadbBS Publicationsc2001  a418p.c24 cm. PB