$1.51

Carreño, Kingkolor

$7.20

Jose Gregorio Bello P., Panapo

$7.20

$10.44

Luis Quintana, Mcgraw Hill

$12.00

Abel Cortese, Planeta

$30.00

H. Reichmann, Thomson

$42.00

A. Rubio Gil, Diaz de Santos

$33.60

Prof. Ramon Grau, Ediciones Grau

$7.20

$10.44

Pablo Rios Cabrera, Cognitus

$9.13

$10.20

$6.07

Antonio Perez Esclarin, San Pablo

$7.29

Victor Colina, Biosfera

$9.24