000 00272nam a2200121Ia 4500
008 191031s9999 xx 000 0 und d
100 _aJohn Mcleish
245 0 _aLooking at chromosomes
260 _bmacmillan & co
260 _c1962
365 _b15.75
942 _cBK
999 _c197491
_d197491