Geographic information systems
Wing Michael G., Bettinger PeteKniha
Citace v seznamu literatury:
WING, Michael G. a BETTINGER, Pete. Geographic information systems: applications in natural resource management. 2nd ed. Don Mills, Ont.: Oxford University Press, 2008. ISBN 9780195426106. Dostupné také z: http://www.loc.gov/catdir/enhancements/fy0907/2008301134-b.html.