00381nam a2200157   450000100060000000300030000600500170000900800410002603500190006703500180008605000220010410000280012624500410015425000110019526000170020630245UR20220427184239.0061104|||||||||||||||||||||||||||||||| d  a(janium) 30234  a(janium)30232 4aKGF409b.R65 19771 aRojina Villegas, Rafael10aDerecho civil mexicanob : contratos  a3a ed.  bPorruac1977