$8.70

Jose Gregorio Bello P., Panapo

$6.00

$12.00

Antonio Luis Cardenas, Dasa

$4.00

L. Sagols - J. Linares, Mcgraw Hill

$21.00

Dario Linares Hernandez, Dl Editoriales

$8.91

Luis Quintana, Mcgraw Hill

$10.00

Prof. Ramon Grau, Ediciones Grau

$6.00

$8.70

Norman E. Gronlund, Trillas

$29.10

Carreño, Kingkolor

$6.00

Antonio Perez Esclarin, San Pablo

$6.08

Abel Cortese, Planeta

$25.00

$1.27

$5.06