5773 1 10 Orlando Fals Borda Primary Author German Guzmán Campos Primary Author Eduardo Umaña Luna Primary Author mixed material 848277056X Bogota- Colombia Editorial Carlos Valencia 1986 Armand Cuvillier Primary Author mixed material Buenos Aires Editorial \"El Ateneo\" 1970 T.B. Bottomore Primary Author mixed material 8429709223 Barcelona España Ediciones Peninsula 1992 Eduardo Lora Primary Author José Antonio Ocampo Primary Author Mauricio Avella Primary Author Joaquín Bernal Primary Author Mauricio Cárdenas Primary Author mixed material 9586012077 Bogota Colombia Editorial Tercer Mundo 1989 Impacto del conflicto armado de Colombia y de las iniciativas para ponerle fin Mariela Sala Eguren Director Elsa Chanduvi Jaña Editor David Shanks Contributor mixed material 9972 Lima Perù 2002 Carlos Alberto Patiño Villa Primary Author mixed material 9588008905 Medellín - Colombia Universidad pontificia Bolivariana 2000 El origen y destino del universo Stephen W. Hawking Primary Author mixed material 9789588773988 Barcelona España Editorial PINGÜINO 2007 Stephen Hawking Primary Author Leonard Mlodinow Primary Author mixed material 9788498921724 Barcelona España 2010 Juan Esquerda Bifet Primary Author mixed material José María Castillo Primary Author mixed material 8428518033 Sevilla España San Pablo 1995