M. Velhagen - E. Calderon, Trillas
$6.00
R. Ahumada - A.montenegro, Trillas
$8.75
Gaceta Nº 40.468, la Piedra
$1.40
Burke A. Cunha, Mcgraw Hill
$25.00
Aderito de Sousa F., Mcgraw Hill
$51.58
William I. Correa Suarez, Livrosca
$6.17
Gaceta Nº 5.552, Dabosan
$1.00
Anil K. Lalwani, Macgraw Hill
$48.00
Hector Turuhpial Cariello, Funeda
$6.00