00454nam a2200181Ia 4500001001300000003000400013008004500017010001700062041000700079100002400086245006200110250001000172260003400182300001100216650001200227650002200239082001100261002164010561LIB220712b1981 py ||||| |||| 00| 0 spa d a002164010561 aEs aOlivera, Julio H. G aDerecho econoĢmico : conceptos y problemas fundamentales a2a ed bMacchi,aBuenos Aires :c1981 a163 p. aDERECHO aDERECHO ECONOMICO a341.75