Prof. Ramon Grau, Ediciones Grau

$7.20

$10.44

Livian Navarro Caro, Panapo

$1.20

Luis Quintana, Mcgraw Hill

$24.00

Pablo Rios Cabrera, Cognitus

$9.13

$6.07

Ana Ponce de Leon, Ccs

$14.40

H. Reichmann, Thomson

$42.00

$10.44

$10.20

Miguel Del Cura, Paraninfo

$45.60

Antonio Luis Cardenas, Dasa

$4.80

Antonio Perez Esclarin, San Pablo

$7.30

Jose Gregorio Bello P., Panapo

$7.20

L. Sagols - J. Linares, Mcgraw Hill

$25.20