| 000 | 00431nam a2200157Ia 4500 | ||
|---|---|---|---|
| 999 |
_c70729 _d70729 |
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| 005 | 20200909092308.0 | ||
| 008 | 180710s9999 xx 000 0 und d | ||
| 041 | _aEN | ||
| 082 |
_a628.3 _bMAN _223 |
||
| 245 | _aManual of instruction for sewage treatment plant operators | ||
| 260 |
_aNewYork _bHealth Education Service _c1960 |
||
| 300 | _aIX,247P. | ||
| 500 | _aIncludes bibliography and Appendix | ||
| 509 | _aNS | ||
| 942 | _cS | ||