Luis Quintana, Mcgraw Hill

$20.00

Carreño, Kingkolor

$6.00

L. Sagols - J. Linares, Mcgraw Hill

$21.00

Jose Gregorio Bello P., Panapo

$6.00

Aldebaran Contreras, Davide Publicidad

$7.00

Abel Cortese, Planeta

$25.00

Antonio Perez Esclarin, San Pablo

$7.00

Norman E. Gronlund, Trillas

$23.00

Victor Colina, Biosfera

$7.00

Fe y Alegria, Estudios

$8.00

$1.00

$4.00

Frida Diaz Barriga Arceo, Mcgraw Hill

$30.00

Prof. Ramon Grau, Ediciones Grau

$6.00

Dario Linares Hernandez, Dl Editoriales

$8.91