M. Velhagen - E. Calderon, Trillas
$6.00
H. Koontz - H. Weihrich, Mcgraw Hill
$71.00
Gaceta Nº 6.013, R Grafica
$1.80
Ronald Chacin Fuenmayor, Luz
$6.00
Roberto H. Frank, Mcgraw Hill
$32.00
Iris Gonzalez de Troconis, Funeda
$7.00
Jesus Mora Contreras, Ula
$7.00