00325nam a2200133Ia 4500008004100000082001600041100002100057245001300078260004300091300000800134650001800142650001800160653001300178170901s1957    xx            000 0 und d  a575.1bA44G  aAltenburg, Edgar 0aGenetics  aNew YorkbHenry Holt and Companyc1957  a496  aLife sciences  aPure Sciences  aGenetics