| 000 | 00541 a2200181 4500 | ||
|---|---|---|---|
| 020 | _a335025331 | ||
| 082 |
_a600 _bOPM |
||
| 100 |
_aPorteous, Andrew _948549 |
||
| 245 |
_aMaintaining the environment _b: prepared by andrew porteous for the technology foundation course team _cThe Open University |
||
| 260 |
_aKeynes: _bThe Open University Press, _c1972. |
||
| 300 | _a105p. | ||
| 500 | _aPB | ||
| 546 | _aEng | ||
| 650 |
_aEnvironment _9174478 |
||
| 650 |
_aTechnology _9174479 |
||
| 700 |
_aThe Open University _9174480 |
||
| 942 | _cBK | ||
| 999 |
_c57760 _d57760 |
||