| 000 | 00305nam a2200097 4500 | ||
|---|---|---|---|
| 245 | _aProblems relating to environment : ECE symposium held from 2 to 15 May 1971 | ||
| 100 | _aU.N. Economic Commission for Europe | ||
| 260 |
_aNew York _bUnited Nations _c1971 |
||
| 300 | _avii,386p. ; 28cm. | ||
| 082 |
_a301.31 _bUN |
||
| 999 |
_c4682 _d4682 |
||