| 000 | 00404nam a2200121 4500 | ||
|---|---|---|---|
| 245 |
_aSelected instruction activities and reference _cby Clinton L. Shepard and James B. Walasak |
||
| 100 | _aShepard, Clinton L. | ||
| 710 | _aWalasak, James B | ||
| 260 |
_aOhio _bU.S. Environmental protection Agency _c1980 |
||
| 300 | _a186p.; 22cm.- | ||
| 490 | _aMonograph series activated sludge | ||
| 082 |
_a333.91 _bSHE |
||
| 999 |
_c63034 _d63034 |
||