Four volume reference book: Geographic Information Systems

Introductory Geographic Information Systems Jensen 2013 Pearson GIS Textbook

Geographic Information Systems & Science

Geographic Information Science and Systems 4th Ed, Wiley, 2nd Print Paperback

Introductory Geographic Information Systems (Prentice Hall Series in Geographic

Introductory Geographic Information Systems By John Jensen & Ryan Jensen

GIS Fundamentals: A First Text on Geographic Information Systems (New & Sealed)

Introduction to Geographic Information Systems