Carreño, Kingkolor

$7.20

$10.44

Daniel Goleman, Building

$27.95

Ana Ponce de Leon, Ccs

$14.40

$6.07

A. Rubio Gil, Diaz de Santos

$33.60

$6.07

$10.44

Antonio Perez Esclarin, San Pablo

$6.00

L. Sagols - J. Linares, Mcgraw Hill

$25.20

Pablo Rios Cabrera, Cognitus

$9.13

Norman E. Gronlund, Trillas

$34.91

Victor Colina, Biosfera

$9.24

Frida Diaz Barriga Arceo, Mcgraw Hill

$36.00

Luis Quintana, Mcgraw Hill

$12.00