| 000 | 00332nam a2200121Ia 4500 | ||
|---|---|---|---|
| 008 | 251112s9999||||xx |||||||||||||| ||und|| | ||
| 040 | _aCNCLSA | ||
| 245 | 0 | _aProceeding of the national academy of sciences | |
| 260 |
_cOctober, 1989 _bNational Academy Of Science _aU. S. A |
||
| 300 | _aP.7663-9052 | ||
| 300 | _bV.86 | ||
| 942 | _cJRBV | ||
| 999 |
_c21802 _d21802 |
||