APA
(1997). Getting started with geographical information systems. New Jersey: Prentice Hall, Inc.
Chicago
1997. Getting started with geographical information systems. New Jersey: Prentice Hall, Inc.
Harvard
(1997). Getting started with geographical information systems. New Jersey: Prentice Hall, Inc.
MLA
Getting started with geographical information systems. New Jersey: Prentice Hall, Inc. 1997.