TY  - BOOK
AU  - Demers, Michael N.
TI  - Fundamentals of Geographic Information Systems 
SN  - 0471451495
U1  - 910.285 
PY  - 2005///
CY  - Hoboken, Nj : 
PB  - John Wiley, 
KW  - Geographic Information Systems
N1  - YY
UR  - https://eaklibrary.neduet.edu.pk:8443/catalog/bk/books/toc/0-471-45149-5.pdf
ER  -