$4.20

Carmen Martinez Nuñez, Mr

$4.05

Jean Mary, Diana

$11.19

$12.00

Emma Farrarons, Paidos

$8.00

$4.80

Jorge Garcia Tamayo, Astro Data

$14.95

A. Oparin, Panapo

$8.40

$4.80

Canfield-otros, Norma

$12.00

J. Lopera - M. Bernal, Intermedio

$5.54

M. Diaz Rodriguez, Panapo

$12.00

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

$39.80

Maria Barbara Rondon, Planeta

$8.11

Tricia Tunstall, Alfa

$9.60