| 000 | 00435 a2200145 4500 | ||
|---|---|---|---|
| 080 |
_a301.3 _bT 463 I |
||
| 245 | 1 |
_aProceeding of a symposium held during the AAAS meeting in philadelphia, Pennsylvania _cedited by W.A. Thomas |
|
| 260 |
_aLondon _bPlenum Press _c1972 |
||
| 650 | _aEnvironment | ||
| 650 | _aQuality Indicators | ||
| 440 | _aEnvironmental Science Research Series | ||
| 100 |
_a _d |
||
| 300 | _a275 p. | ||
| 901 | _a130284 | ||
| 999 |
_c59437 _d59437 |
||