00365nam a2200133Ia 4500008004100000082001600041100001700057245002300074260004800097300000800145650001800153650004200171653001800213170901s1947 xx 000 0 und d a551.4bL14P aLake, Philip 0aPhysical Geography aCambridgebCambridge University Pressc1947 a324 aPure Sciences aScience of the earth and other worlds aGeomorphology