| 000 | 00558nam a22001457a 4500 | ||
|---|---|---|---|
| 008 | 230608b |||||||| |||| 00| 0 eng d | ||
| 040 |
_aNational Science Library _cNational Science Library |
||
| 080 |
_a628.3/4:301.15 _bM0 |
||
| 245 |
_aAppropriate technology for water supply and sanitation _c/ Transportation, Water and Telecommunication Department, December 1980 |
||
| 260 |
_aUSA: _bTransportation, Water and Telecommunication Department, _c1980 |
||
| 500 | _aVol.5 Vol.11 Vol.1b | ||
| 650 | _aScience | ||
| 653 | _aEnvironment | ||
| 942 |
_2udc _cPR |
||
| 999 |
_c40956 _d40956 |
||