| 000 | 00466nam a2200193Ia 4500 | ||
|---|---|---|---|
| 008 | 210210b1955 xxu||||| |||| 00| 0 eng d | ||
| 041 | _aeng | ||
| 082 | _a539/22 | ||
| 100 | _aCROWTHER (J G) | ||
| 245 | _aDiscoveries and inventions of the 20th century | ||
| 260 |
_aLondon _bRoutledge & Kegan Paul _c1955 |
||
| 300 | _a432 | ||
| 650 | _ainventions | ||
| 650 | _aDiscoveries | ||
| 650 | _acentury | ||
| 650 | _a20th | ||
| 690 | _aPhysics | ||
| 906 | _a009038 | ||
| 999 |
_c126758 _d126758 |
||