| 000 | 00454 a2200169 4500 | ||
|---|---|---|---|
| 020 | _a335020356 | ||
| 082 |
_a500 _bOPM |
||
| 082 |
_a500 _bOPM |
||
| 100 |
_aThe Open University _9173978 |
||
| 245 |
_aMajor features of the earth's surface. _cOpen university |
||
| 260 |
_aKeynes: _bThe Open University, _c1973. |
||
| 300 | _a39p. | ||
| 650 |
_aEarth _9173979 |
||
| 650 |
_aGeology _9173980 |
||
| 650 |
_aScience-Study and teaching _9173981 |
||
| 942 | _cBK | ||
| 999 |
_c56081 _d56081 |
||