$14.40

H. Reichmann, Thomson

$42.00

$10.44

Antonio Perez Esclarin, San Pablo

$8.40

Ana Ponce de Leon, Ccs

$14.40

Dario Linares Hernandez, Dl Editoriales

$10.69

A. Rubio Gil, Diaz de Santos

$33.60

L. Sagols - J. Linares, Mcgraw Hill

$25.20

Norman E. Gronlund, Trillas

$34.91

Luis Quintana, Mcgraw Hill

$24.00

Antonio Perez Esclarin, San Pablo

$7.29

$6.07

Prof. Ramon Grau, Ediciones Grau

$7.20

Fe y Alegria, Estudios

$9.60

Pablo Rios Cabrera, Cognitus

$9.13