000 00330nam a2200133Ia 4500
008 220721s1931 xx 000 0 und d
041 _aeng
082 _a598.2
100 _aRowan William
245 _aRiddle of Migration
260 _aBaltimore
_bWilliams And Wilkins Co.
_c1931
300 _axiv, 151P.
999 _c77662
_d77662