$17.00

Mariana Obregon, Saber

$16.00

$21.31

Yolanda de Bremo, Premier

$6.00

C. Navarro - M. Rull, Santillana

$20.00

Azpurua - Alfonzo, Terra Editores

$23.68

Reinaldo Marin, Santillana

$11.38

Maite Dautant, Saber

$12.00

Sergio Medina Lopez, Noriega

$18.48

Fernando Gonzalez Lucini, Estudios - Anaya

$11.94

Pablo Bravo, Biosfera

$18.20

Elba Albujas Veliz, Biosfera

$21.00

Juan J. Gutierrez, Girasol

$11.04

Irma Del Valle Brito, Santillana

$11.21

Maria Pereira-p. Velasco, Trillas

$12.00