| 000 | 00318nam a22000977a 4500 | ||
|---|---|---|---|
| 008 | 231030b |||||||| |||| 00| 0 eng d | ||
| 040 |
_aNational Science Library _cNational Science Library |
||
| 245 | _aProceedings of the National Academy of Sciences U.S.A | ||
| 260 |
_aUSA: _bNational Academy of Sciences, |
||
| 942 | _cCR | ||
| 999 |
_c62848 _d62848 |
||