000 00305nam a2200121Ia 4500
008 140113s9999 xx 000 0 und d
082 _a574 L0
100 _aNational Academy of Sciences
245 _aLife Sciences
260 _a1970
_bNational Academy of Science
_cU.S.A.
300 _a526
942 _cBK
999 _c57890
_d57890