| 000 | 004230000a22001450004500 | ||
|---|---|---|---|
| 008 | 140223b1949 xxu||||| |||| 00| 0 eng d | ||
| 041 | _aENG | ||
| 080 | _aC295y8 H910 | ||
| 082 | _aC295y8 H910 | ||
| 100 | _aCURTISS (Leon F) | ||
| 245 | _aMeasurements of radioactivity. | ||
| 260 |
_aWashington,D.C. _bNational bureau of Standards. _c1949 |
||
| 500 | _aNational bureau of standards Circular, 476. | ||
| 650 | _aNUCLEUS | ||
| 999 |
_c225651 _d225651 |
||