000 00391nam a22001457a 4500
082 _a575.1
_bASG
100 _aAshton, Beryl G.
_944943
245 _aThe principles of modern biology
_b: genes, chromosomes and evolution
_cBeryl G. Ashton
260 _aBoston:
_bHoughton mifflin,
_c1967.
300 _axii, 172p.
500 _aPB
546 _aEng
650 _aBiology
_9136410
942 _cBK
999 _c66657
_d66657