| 000 | 00539nam a2200157Ia 4500 | ||
|---|---|---|---|
| 008 | 010219t1984 000 0 eng d | ||
| 080 |
_a659.2 ERI _b582 |
||
| 100 | _aErik De Man, W.H. | ||
| 245 | 0 |
_aConceptual framework and guidelines for establishing geographic information systems (Preliminary version). _h(Book) |
|
| 260 |
_aParis _bUnesco _c1984 |
||
| 300 |
_a67p. _c30 cm. |
||
| 650 | _aGeography--Data processing | ||
| 700 | _aUNESCO. General Information Programme | ||
| 710 | _aUNESCO. General Information Programme | ||
| 999 |
_c2458 _d2458 |
||
| 035 | _a582 | ||