| 000 | 00329nam a2200121Ia 4500 | ||
|---|---|---|---|
| 008 | 170101s1977 xx 000 0 und d | ||
| 082 | _a333.73 UNE | ||
| 100 | _aUNESCO | ||
| 245 | 0 | _aDevelopment of Arid and Semi Arid lands : Obstacles and Prospects | |
| 260 |
_aParis _bUnesco Press _c1977 |
||
| 300 | _a42 p. | ||
| 942 |
_2ddc _cB |
||
| 999 |
_c599366 _d599366 |
||