Discover QGIS
by Kurt Menke, Gary E Sherman
ISBN 13: 9780989421768
Format: Paperback (472 pages) Publisher: Locate Press Published: 11 Jul 2016
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pgRouting: A Practical Guide
by Regina O Obe, Leo S Hsu, Gary E Sherman
ISBN 13: 9780989421737
Format: Paperback (282 pages) Publisher: Locate Press Published: 31 May 2017