00465nam a22001697a 4500003000400000005001700004008004100021020001500062040000800077082001900085100003000104245006100134250000800195260003900203300001100242650004200253OSt20220524101002.0030206s2002 ck 000 0 spa d a970100793X cOSt04221a340 bA4831 aAlvarez Ledesma, Mario I.00aIntroducción al Derecho / cMario I. Alvarez Ledesma a1ed aMéxico : bMcGraw-Hill, c1997. a428 p.042LEMBxDERECHO-ESTUDIO Y ENSEÑANZA