$15.60

Mercedez Hernandez Perez, Biosfera

$18.00

G. Paramo - P. Serrano, Noriega

$18.20

$6.00

B. Barcenas - M. Cottin, Saber

$8.00

Jupiter Figuera Yibirin, Cobo

$10.00

Manuel Dos Santos, Mcgraw Hill

$5.00

P. Izquierdo - C. Garcia, Salesiana

$5.93

M. Tamariz - N. Baldera, Saber

$5.00

Antonio Salas Ximelis, Everest

$4.80

Carolina Rivero, Coliseo

$18.20

Marte G. Garcia, Garnet

$5.00

Arturo Sanchez

$8.06

Ely Brett - W. Suarez, Discolar

$6.00

Maria Latorraca, Richmond

$12.00

William Fuentes Hernandez, Liber

$7.00

P. Montoya - M. Ramirez, Mcgraw Hill

$12.00

Gaceta Nº 40.351, Njr

$2.00

Gaceta Nº 39.346, la Piedra

$2.30

Frederick J. Bueche, Mcgraw Hill

$40.00

Jostein Gaarder, Siruela

$13.44

Juan Garay, Agr

$3.00

Gaceta Nº 37.125, la Piedra

$2.00

Rafael Diaz Blanco, Atacama

$7.00

Edgar Morin, Faces - Ucv-unesco

$5.68

Angel Ossorio, Ediciones Nuevo Mundo

$4.00

Gaceta Nº 40.461, la Piedra

$5.50

Stanton - Etzel - Walker, Mcgraw Hill

$38.00

Deepak Chopra, Alamah

$6.50

Javier Arturo Rovira Meji

$30.00