Victor Colina, Biosfera

$9.24

Jose Gregorio Bello P., Panapo

$7.20

$10.20

$6.07

Antonio Luis Cardenas, Dasa

$4.80

$10.44

L. Sagols - J. Linares, Mcgraw Hill

$25.20

Luis Quintana, Mcgraw Hill

$12.00

Antonio Perez Esclarin, San Pablo

$6.00

Frida Diaz Barriga Arceo, Mcgraw Hill

$36.00

$14.40

Antonio Perez Esclarin, San Pablo

$8.40

Carreño, Kingkolor

$7.20

$10.44

H. Reichmann, Thomson

$42.00