C. Navarro - S. Peinado, Santillana
$7.50
M. Block - I. Marash, Fc Editorial
$37.00
Gaceta N. 38.763, Njr
$1.00
F. Barriga - G. Hernandez, Mcgraw Hill
$28.00
C. Verde - S. Gentil, Trillas
$20.00
Gaceta N. 37.625 - 37.627, la Piedra
$0.70
J. Alonso Santos, Diaz de Santos
$37.00
Jorge E. Burbano Ruiz, Mcgraw Hill
$35.00
Salvador Zubiran, Mcgraw Hill
$56.00