| 000 | 00358nam a2200121Ia 4500 | ||
|---|---|---|---|
| 008 | 251112s9999||||xx |||||||||||||| ||und|| | ||
| 040 | _aCNCLSA | ||
| 245 | 0 | _aProceedings of the National Academy Of Sciences of the United States of America | |
| 260 |
_cApril, 1989 _bProc. Natl. Acad. Sci. _aU.S.A |
||
| 300 | _aP. 2521-3928 | ||
| 300 | _bV. 86 | ||
| 942 | _cJRBV | ||
| 999 |
_c29594 _d29594 |
||