| 000 | 00583nam a22001337a 4500 | ||
|---|---|---|---|
| 008 | 230711b |||||||| |||| 00| 0 eng d | ||
| 040 |
_aNational Science Library _cNational Science Library |
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| 080 |
_a504.064(203)(1-21)"1977/1978" _bM0 |
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| 245 |
_aAir quality in selected urban areas 1977-1978: _bGlobal environmental monitoring system _c/ Prepared in cooperation with the WHO collaborating.............................Washington, DC, USA |
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| 260 |
_aGeneva: _bWorld Health Organization, _c1980 |
||
| 300 | _a71p. | ||
| 490 | _aWHO offset publication no. 57 | ||
| 942 |
_2udc _cREF |
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| 999 |
_c51083 _d51083 |
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