TY  - BOOK
AU  - MASSER,JAN
AU  - BLAKEMORE,MICHAEL
TI  - HANDLING GEOGRAPHICAL INFORMATION: METHODOLOGY AND POTENTIAL APPLICATIONS / 
U1  - 910.285 
PY  - 1991///
CY  - [S.N] : 
PB  - LANGMAN SCIENTIFICT TECHNICAL ، 
KW  - GEOGRAPHIC INFORMATION SYSTEMS
ER  -