HEYWOOD,Ian An Introduction to Geographical Information Systems Ian Heywood, Sarah Cornelius and Steve Carver - 4th ed - New-York Prentice Hall 2011 - xiv,446p ill; 27cm Includes References and Index ISBN: 978-0-273-72259-5(pbk.) Subjects--Topical Terms: LC Class. No.: 910.285 Dewey Class. No.: 910.285