Antonio Perez Esclarin, San Pablo

$6.00

$10.44

H. Reichmann, Thomson

$42.00

Ana Ponce de Leon, Ccs

$14.40

Carreño, Kingkolor

$7.20

$6.07

Victor Colina, Biosfera

$9.24

Luis Quintana, Mcgraw Hill

$12.00

Antonio Luis Cardenas, Dasa

$4.80

Fe y Alegria, Estudios

$9.60

Luis Quintana, Mcgraw Hill

$24.00

$14.40

Norman E. Gronlund, Trillas

$34.91

Frida Diaz Barriga Arceo, Mcgraw Hill

$36.00

Miguel Del Cura, Paraninfo

$45.60