Zoraida Torrealba, Triangulo

$12.00

Pablo Bravo, Biosfera

$18.20

C. Navarro - M. Rull, Santillana

$26.00

Mariana Obregon, Saber

$16.00

$30.00

$21.31

$26.50

Ednodio Quintero, Planetalector

$12.00

Zoraida Torrealba, Triangulo

$11.94

$8.40

G. Katz - M. Katz, Mcgraw Hill

$6.00

Marcela Hinojosa de Coria, Trillas

$8.71

Maria Pereira-p. Velasco, Trillas

$12.00

Moreno Perez, Actualidad Escolar 2000

$26.00

B. Barcena - M. Giraldez, Romor

$7.20