00290nam a2200121 a 450000500170000002000150001708200180003210000120005024500270006226000480008930000170013770000140015420251203110058.0  a8170227240  a621.3678bNAG  aNag, P.  aDigital remote sensing  aNew DelhibConcept publishing companyc1998  a320p.c22cm.  aKudrat, M