Pablo Rios Cabrera, Cognitus

$9.13

Abel Cortese, Planeta

$30.00

Antonio Luis Cardenas, Dasa

$4.80

Luis Quintana, Mcgraw Hill

$12.00

Daniel Goleman, Building

$27.95

Norman E. Gronlund, Trillas

$34.91

Ana Ponce de Leon, Ccs

$14.40

Frida Diaz Barriga Arceo, Mcgraw Hill

$36.00

L. Sagols - J. Linares, Mcgraw Hill

$25.20

$10.44

A. Rubio Gil, Diaz de Santos

$33.60

Carreño, Kingkolor

$7.20

$10.44

Victor Colina, Biosfera

$9.24

Antonio Perez Esclarin, San Pablo

$7.29