"El  centauro de Ybicui"
By: pelo general de brigada Mario Barretto.
Publisher: "Centro de boa imprensa"
Published: 1930
Place of publication: Rio de Janeiro
Language: por
Number of pages: 188
Subjects: O'Leary, Juan E. 1879-1969.; Caballero, Bernardino, 1831-1912; Paraguayan War, 1865-1870.
Notes: A criticism of "El centauro de Ybycul" by Juan Emilliano O'Leary