00273nam a2200109Ia 450000500170000000800410001708200140005810000160007224500260008826000410011430000080015520260224040804.0260224s9999||||xx |||||||||||||| ||und||  a575.1 ADV  aDemerec, M. 0aAdvances in genetics   aNew York; Academic Press Inc. c1958  a294