000 | 00305nam a2200109Ia 4500 | ||
---|---|---|---|
008 | 190428s9999||||xx |||||||||||||| ||und|| | ||
020 | _a0-335-02034-8 | ||
100 |
_aAnon _915348 |
||
245 | _aThe earth: it's shape, internal structure and composition | ||
250 | _b1975. 45 | ||
260 | _bOpen university. Keynes | ||
999 |
_c15219 _d15219 |