Pedro Del Castillo, Diana

$9.33

R. Rodriguez Herrera, Mcgraw Hill

$30.00

Miguel Angel Ruiz Jimenes, Diaz de Santos

$26.00

T. Gomella - Cunningham, Mcgraw Hill

$50.00

Rogelio Rodriguez Bonito, Mcgraw Hill

$51.58

Greydanus - Feinberg - Pa, Mcgraw Hill

$45.50

Him, Mcgraw Hill

$200.00

Jesus Rodriguez Lastra, Universidad de Carabobo

$15.00

Joseph J. Zorc, Lippincott

$63.00