5 1 10 mixed material Medellín Medio siglo de lucha campesina Javier Albo Primary Author mixed material La Paz Bolivia 1979 Bustamante, Teodoro Primary Author Espinosa, María Fernanda Primary Author Ruiz, Lucy Primary Author Trujillo, Jorge Primary Author Uquillas, Jorge Primary Author mixed material 9978940774 Quito, Ecuador Ediciones Abya Yala 1993 Conferencia Episcopal Ecuatoriana Primary Author mixed material Ecuador Confererenca Episcopal Ecuatiana 2018 Epistemología, praxiología, didáctica Vidart, Daniel Primary Author mixed material 9589039065 Bogotá. Editorial nueva america 1986