00358nam a2200145   450000100060000000300030000600500170000900800410002603500190006703500180008605000210010410000220012524500440014726000210019133310UR20220427191221.0061105|||||||||||||||||||||||||||||||| d  a(janium) 33299  a(janium)33297 4aHM211b.S34 19901 aSaldivar, Americo10aEstructura economica y social de Mexico  bQuinto Solc1990