Title of article :
Dale. Peter, Introduction to Mathematical Techniques Used in GIS, CRC Press, Boca Raton, FL, USA (2005) ISBN 0-415-33414-4 (224 pp., USD82.95, CDN 106.50, € 74.50, Hardbound).Worboys. Michael and Duckham. Matt, GIS: A Computing Perspective (second ed), CR