E. Rodriguez - F. Suarez, Romor
$7.00
Alberto Arias Amaro, Romor
$7.00
Gaceta No. 6.156, la Piedra
$0.83
D. Fitzgibbon - J. Loeser, Lippincott
$125.00
Frederick Cabrera Conde, Ediciones Mutare
$10.00
P. Samuelson - W Nordhaus, Mcgraw Hill
$57.00
Gaceta N. 6.013, Rgraficas
$1.00
Burke A. Cunha, Mcgraw Hill
$25.00
Francisco J. Gonzalez F., Fc Editorial
$30.00