00249nam a2200097Ia 4500008004100000082001400041100003100055245002900086260000900115264002700124231129s1979||||xx |||||||||||||| ||spa||  aHAJ- 0091  aAguilar  Alonso...[et al.] 0aCausas del subdesarrollo  c1979  aBogotá: Tercer Mundo