Antonio Perez Esclarin, San Pablo

$8.40

Luis Quintana, Mcgraw Hill

$24.00

Antonio Luis Cardenas, Dasa

$4.80

Frida Diaz Barriga Arceo, Mcgraw Hill

$36.00

$10.44

$10.20

H. Reichmann, Thomson

$42.00

Carlos Marx, Literatura Narrativa

$10.20

Victor Colina, Biosfera

$9.24

Fe y Alegria, Estudios

$9.60

Jose Gregorio Bello P., Panapo

$7.20

Abel Cortese, Planeta

$30.00

Pablo Rios Cabrera, Cognitus

$9.13

Aldebaran Contreras, Davide Publicidad

$8.40

Dario Linares Hernandez, Dl Editoriales

$10.69