00361nam a2200145Ia 4500008004100000020001800041041000800059082001700067100001500084245005200099250001200151260002100163365001600184700001500200230718s9999    xx            000 0 und d  a9780070658981  aeng  a910.285bCHA  aChang K-T.  aIntroduction To Geographic Information Systems   a4th ed.  bTata McGraw-Hill  cRs.b510.00  aChang K-T.