Gaceta Nº 6.154, Njr

$2.00

Ramirez Cavassa, Limusa

$20.00

Laura Hernandez Ramirez, Mc Graw Hill

$8.00

Wilmer J. Olano Rodriguez

$7.00

Gaceta 5.159, Njr

$2.00

Piscotta - Liendo - Lauro, Cengage Learning

$33.00

Gaceta N. 6.667, Ml, C.a.

$6.00

Dr. Lair Ribeiro, Urano

$6.50

J. Liebana Ureña, Mcgraw Hill

$85.00

Glade B. Curtis-schuler, Planeta

$11.00

D. Zill - W. Wright, Mcgraw Hill

$23.00

Gaceta No. 6.017, Njr

$2.00

Alberto Alvarez Arango, Mcgraw Hill

$1.00

Gaceta No. 37.665 04/4/03, la Piedra

$2.00

$6.00

Ignacio Garcia Valcarcel, Fc Editorial

$39.00

Isabel de Val-pardo, Diaz de Santos

$27.00

Jose German Pacheco, Ucv

$14.03

James-otis Rodner S., Academia de Ciencias

$6.00

$5.00

Maite Dautant, Saber

$3.50

$1.27

Luis Quintana, Mcgraw Hill

$10.00

Gaceta Nº 34.831, la Piedra

$1.40

Gonzalo Gerbasi, Alvaro Nora

$9.26

Mitchell - Spencer - Otro, Pearson

$19.00

Carlos E. Weffe H., Avdt

$7.74

Gaceta Nº 40.115, Njr

$2.85

Gaceta Nº 5.891, Njr

$2.00

Gaceta Nº 1.631, Njr

$1.11