| 000 | 00334nam a2200121Ia 4500 | ||
|---|---|---|---|
| 008 | 251112s9999||||xx |||||||||||||| ||und|| | ||
| 040 | _aCNCLSA | ||
| 245 | 0 | _aProceedings of the national academy of sciences | |
| 260 |
_cNovember, 1981 _bNational Academy Of Science _aU. S. A |
||
| 300 | _aP.6561-7948 | ||
| 300 | _bV.78 | ||
| 942 | _cJRBV | ||
| 999 |
_c24546 _d24546 |
||