| 000 | 00382nas a2200121Ia 4500 | ||
|---|---|---|---|
| 008 | 170101s2017 xx 000 0 und d | ||
| 044 | _aU.S.A. | ||
| 245 | 0 | _aU.S. Government Research Reports | |
| 260 |
_bU.S. Department of Commerce, NTIS _aWashington |
||
| 270 | _aU.S. Department of Commerce, National Technical Information Service | ||
| 362 | _aJan - Dec,1961 | ||
| 942 |
_2ddc _cP |
||
| 999 |
_c159941 _d159941 |
||