H. Koontz - H. Weihrich, Mcgraw Hill
$72.00
C. Pelekais - P. Gonzalez, Cira Pelekais
$6.52
D. Eiteman - A. Stonehill, Prentice Hall
$35.00
Sue Kay - Vaughan Jones, Macmillan
$1.00
Gaceta N. 40.639, Njr
$2.00
Laura Hernandez Ramirez, Mc Graw Hill
$8.00
Guerrero Hardy Alvaro, Funeda
$6.00