| 000 | 00256nam a2200097Ia 4500 | ||
|---|---|---|---|
| 008 | 200511s9999||||xx |||||||||||||| ||und|| | ||
| 082 | _aE-503 | ||
| 245 | 0 | _aEncyclopaedia of science and technology. Vol.12. | |
| 260 |
_bMcGraw Hill Pub. _c1971 |
||
| 300 | _a756p. | ||
| 999 |
_c67513 _d67513 |
||
| 650 |
_aEncyclopedias _aScience Encyclopedias _aTechnology Encyclopedias |
||
| 650 | _aScience | ||