00325nam a2200133Ia 4500008004100000082001900041100001800060245001600078260003700094300000800131650001800139650001800157653001600175170901s1961 xx 000 0 und d a574.8732bW41C aWhite, M.J.D. 0aChromosomes aLondonbMethuen and Co Ltdc1961 a188 aLife sciences aPure Sciences aChromosomes