| 000 | 00409nam a2200133Ia 4500 | ||
|---|---|---|---|
| 082 |
_a363.7284 _bNEW |
||
| 100 | _aNew York State Dept. of Health & others | ||
| 245 | _aManual of intruction for sewage treatment plant operators. | ||
| 260 |
_aNew York _bHealth Education Service |
||
| 300 | _aix,242p.,v. | ||
| 890 | _aUnited States | ||
| 891 | _aGratis from Ravi Builders, Ahmedabad | ||
| 999 |
_c21988 _d21988 |
||