$6.07

Dario Linares Hernandez, Dl Editoriales

$10.69

$1.51

Luis Quintana, Mcgraw Hill

$24.00

L. Sagols - J. Linares, Mcgraw Hill

$25.20

Antonio Perez Esclarin, San Pablo

$7.29

Pablo Rios Cabrera, Cognitus

$9.13

H. Reichmann, Thomson

$42.00

Norman E. Gronlund, Trillas

$34.91

Victor Colina, Biosfera

$9.24

$14.40

Antonio Perez Esclarin, San Pablo

$8.40

Luis Quintana, Mcgraw Hill

$12.00

Ana Ponce de Leon, Ccs

$14.40

$10.20