$2.00

D. Tovar - N. Gonzalez, Terra Editores

$15.60

Juan J. Gutierrez, Girasol

$19.00

Mercedes Hernandez P., Biosfera

$18.00

G. Katz - M. Katz, Mcgraw Hill

$5.00

$11.70

Miguel Del Valle Rojas, Actualidad

$16.90

Clara E. Martinez, Girasol Lite

$15.00

$14.30

Griselda Navas, Romor

$5.00

Griselda Navas, Romor

$5.00

Francisco Avila, Romor

$6.50

Marcos J. Alfonso B., Santillana

$6.00

Gisela Soto, Cobo

$10.00

Clara Martinez, Girasol

$19.00