$6.07

Miguel Del Cura, Paraninfo

$45.60

A. Rubio Gil, Diaz de Santos

$33.60

H. Reichmann, Thomson

$42.00

Antonio Perez Esclarin, San Pablo

$7.29

Luis Quintana, Mcgraw Hill

$12.00

Dario Linares Hernandez, Dl Editoriales

$10.69

$10.44

$10.44

Victor Colina, Biosfera

$9.24

Jose Gregorio Bello P., Panapo

$7.20

Prof. Ramon Grau, Ediciones Grau

$7.20

Luis Quintana, Mcgraw Hill

$24.00

$1.51

Abel Cortese, Planeta

$30.00