| 000 | 00389cam a22001097a 4500 | ||
|---|---|---|---|
| 008 | 180718b1977 xxu||||| |||| 00| 0 eng d | ||
| 082 | _aX91 W893a | ||
| 245 |
_aAir monitoring programme design for Urban and industrial areas _cby World Health Organization, Switzerland |
||
| 260 |
_aGeneva _bWorld Health Organization _c1977 |
||
| 300 | _a46p. | ||
| 700 | _aSwitzerland. World Health Organization | ||
| 999 |
_c498820 _d498820 |
||