Elba Albujas Veliz, Biosfera

$22.44

G. Katz - M. Katz, Mcgraw Hill

$6.00

Maite Dautant, Saber

$6.00

Mariana Obregon, Saber

$18.00

Marcela Hinojosa de Coria, Trillas

$11.94

Francisco Avila, Saber

$6.00

D. Borges - C. Castillo, Romor

$8.40

A. Rondon - I. Berroteran, Salesiana

$12.00

$33.12

J. Pecina - R. Ma. Rosas, Larousse

$1.38

Gisela Soto, Noriega

$20.59

Ines Silva Legorburu, Santillana

$11.39

$8.71

Hilda Fernandez, Trillas

$11.94

$3.00