A. Oparin, Panapo

$7.00

Dr. Lair Ribeiro, Urano

$4.73

Lope de Vega, Kingkolor

$4.00

Rubios, Temas de Hoy

$15.00

Griselda Navas, Fedupel

$3.41

Jorge A. Quintero Atencio, Ediciones Astro Data S.a.

$1.00

Rafael Castarlenas, Panapo

$10.00

Enrique Ter Horst

$8.00

Dr. Eduard Estivill, Booket

$5.50

Mario Acuña Santaniello, Booket

$10.00

Luis Cañon M., Planeta

$11.00

Colliere, Mc Graw Gill

$21.92

$20.00

Ref. 800m10, Corpobro

$3.00

R. Burnham, Planeta

$10.00