000 00396nam a2200157Ia 4500
008 170901s1969 xx 000 0 und d
082 _a574.192
_bY-2B
100 _aYcas, M.
245 0 _aBiological Code
260 _aAmsterdam
_bNorth-Holland Publishing Company
_c1969
300 _a360
650 _aLife sciences
650 _aPure Sciences
653 _aBiological codes
942 _2ddc
_cBK
999 _c6414
_d6414