Silvestre Barreto - Otros, Silvestre Barreto
$4.80
William I. Correa Suarez, Livrosca
$6.17
R. Hyatt - P. Scanlon, Lippincott
$23.50
D. Eiteman - A. Stonehill, Prentice Hall
$35.00
Gaceta N. 6.667, Ml, C.a.
$6.00
Gaceta Nº 38.394, Nr
$1.00