$4.80

$6.00

Enrique Tejada Rodriguez, Trillas

$37.95

$4.20

Bernardo Stamateas, Zenith

$8.86

R. Burnham, Planeta

$12.00

$7.20

Gil Molina, Proyecto Identidad

$13.04

V. Bote- Ma. Such -l. Esc, Mc Graw Hill

$39.80

Bernardo Stamateas, Grupo Zeta

$12.00

M. Diaz Rodriguez, Panapo

$12.00

$3.60

Lucy Amado, Lucy Amado

$12.75

$4.20

Bernardo Stamateas, Zenith

$12.00