TY  - BOOK
ED  - International Institute for Aerospace Survey and Earth Sciences
TI  - Principles of Geographic Information Systems
SN  - 9789061642008
PY  - 2001///
CY  - Enschede, The Netherlands
PB  - International Institute for Aerospace Survey and Earth Sciences (ITC)
N1  - Includes bibliographical references (p. 211-214)
ER  -