00345nam a2200133Ia 4500008004100000082001800041100002100059245001800080260003900098300000800137650001800145650002400163653002400187170901s1956    xx            000 0 und d  a591.166bR90F  aRothschild, Lord 0aFertilization  aLondonbMethuen and Co. Ltd.c1956  a170  aPure Sciences  aZoological sciences  aAnimal reproduction