| 000 | 00420nam a22001337a 4500 | ||
|---|---|---|---|
| 040 | _cIIT Kanpur | ||
| 041 | _aeng | ||
| 100 | _aWallner, Lewis E. | ||
| 245 | _aRadiation Shielding for manned space flight [NASA TN D-681- D-689] | ||
| 260 |
_aWashington, DC _bNational Aeronautics and Space Administration [NASA] _c1961 |
||
| 300 | _a45p | ||
| 440 | _aNational Aeronautics and Space Administration [NASA] | ||
| 942 | _cBK | ||
| 999 |
_c563845 _d563845 |
||