00434nam a2200181Ia 4500001000700000003000400007008004500011010001100056041001400067100001800081245002800099260003400127300001100161650002100172650002200193650002900215082000800244001679LIB220712b1971        py ||||| |||| 00| 0 spa d  a001679  aEspañol  aDollot, Louis  aLas migraciones humanas  bOikos-Tau,aBarcelona :c1971  a120 p.  aMIGRACION HUMANA  aMIGRACION INTERNA  aEMIGRACION E INMIGRACION  a330