TY  - BOOK
TI  - Extending arcview gis: teach yourself use arcview gis extensions
SN  - 1-879102-05-6
U1  - C 910 A668 
PY  - 1999///
CY  - Redlands, Calif.
PB  - ESRI Press
KW  - GEOGRAFIA
KW  - SISTEMAS DE INFORMACION
ER  -