A. Rubio Gil, Diaz de Santos

$33.60

Victor Colina, Biosfera

$9.24

Frida Diaz Barriga Arceo, Mcgraw Hill

$36.00

$10.20

Luis Quintana, Mcgraw Hill

$12.00

L. Sagols - J. Linares, Mcgraw Hill

$25.20

$10.44

Ana Ponce de Leon, Ccs

$14.40

Antonio Perez Esclarin, San Pablo

$8.40

Daniel Goleman, Building

$27.95

H. Reichmann, Thomson

$42.00

Aldebaran Contreras, Davide Publicidad

$8.40

Antonio Perez Esclarin, San Pablo

$7.29

Livian Navarro Caro, Panapo

$1.20

Norman E. Gronlund, Trillas

$34.91