Y. Arcas - L. Arenas, Santillana

$12.14

Reinaldo Marin, Santillana

$11.38

Rocio Bueno, Mcgraw Hill

$6.00

Freddy Suarez Figueroa, Disutextos

$30.00

A. Rondon - I. Berroteran, Salesiana

$12.00

Gumersindo Fernandez, Everest

$11.94

$3.50

$26.00

Victor M. Rodriguez, Trillas

$14.00

Ana. M. Torreiro - E. Perez, Grupo J3v

$18.50

C. Navarro - M. Rull, Santillana

$35.00

Elba Albujas Veliz, Biosfera

$21.00

Mercedes Hernandez P., Biosfera

$23.00

B. Barcena - M. Giraldez, Romor

$7.20

$8.40