Miguel A. Bolivar D., Actualidad Escolar 2000
$18.20
H. Gutierrez-r.de la Vara, Mcgraw Hill
$50.00
Bid, Alfaomega
$23.91
Toyn F. Villar V., Libra
$10.80
Gaceta Nº 6.116, Njr
$2.00
Ezequiel Ander- Egg, Lumen
$8.70
J. Sanchez - S. Serrano, Diaz de Santos
$25.00
Dr. Ing. Harry Osers, Refolit C.a.
$12.28
C. Pelekais - P. Gonzalez, Cira Pelekais
$6.52
Piedad Fernandez Herrero, Fc Editorial
$25.00