$8.70

Aldebaran Contreras, Davide Publicidad

$7.00

H. Reichmann, Thomson

$35.00

Antonio Perez Esclarin, San Pablo

$7.00

Frida Diaz Barriga Arceo, Mcgraw Hill

$30.00

$8.50

Victor Colina, Biosfera

$7.70

Prof. Ramon Grau, Ediciones Grau

$6.00

Carlos Marx, Literatura Narrativa

$8.50

$5.06

Antonio Luis Cardenas, Dasa

$4.00

$12.00

$5.06

Miguel Del Cura, Paraninfo

$38.00

Fe y Alegria, Estudios

$8.00