M. Tamariz - N. Baldera, Saber
$5.00
Lucrecia Gonzalez G., Actualidad Escolar 2000
$14.30
Eduardo Rosset Cardenal, Publisher Fifth Avenue
$4.80
C. Navarro - O. Dominguez, Santillana
$4.80
A. T. de Perez - E. Perez, Larense
$6.00
Aderito de Sousa F., Mcgraw Hill
$51.58
Gaceta No. 39.627, Ml
$8.00
C. Burrus - J. Mcclellan, Prentice Hall
$12.28
S Berti - S Cordoliani, Fundacion Empresas Polar
$2.25