00383nam a2200145Ia 4500008004100000082001700041100002000058245003500078260004500113300000800158650001800166650001800184653001300202653002200215170901s1960    xx            000 0 und d  a575.13bS38N  aSheppard, P. M. 0aNatural Selection And Heredity  aNew YorkbHarper and Brother, Pub.c1960  a209  aLife sciences  aPure Sciences  aHeredity  aNatural selection