Published in Revista Chil Ent, in 1974, in volume 8, pages 11-15
Published in Revista Chil Ent, in 1974, in volume 8, pages 17-21
Published in Revista Chil Ent, in 1974, in volume 8, pages 23-26
Published in Revista Chil Ent, in 1974, in volume 8, pages 35-38
Published in Revista Chil Ent, in 1974, in volume 8, pages 47-66
Published in Revista Chil Ent, in 1974, in volume 8, pages 67-69
Published in Revista Chil Ent, in 1974, in volume 8, pages 95-116
Published in Revista Chil Ent, in 1974, in volume 8, pages 117-118
Published in Revista Chil Ent, in 1974, in volume 8, pages 119-121
Published in Revista Chil Ent, in 1974, in volume 8, pages 133-134
Published in Revista Chil Ent, in 1974, in volume 8, pages 149-150