00451 a2200169 4500 9788131507605 910.285 GOR 26022 45088 Gorr, Wilpen L. Learning and usinggeographic information systems New Delhi Cengage Learning 2004 2004 261p. 24cm Geographic information systems Geography Kurland, Kristen S. L 52916 52916 0 0 0 0 LEN MKDL MKDL LEN 2010-09-21 2 910.285GOR 64872 2025-07-25 00:00:00 2025-07-09 0.00 2016-10-31 L