Ref. N01d814c100, Caracas Paper Company
$1.35
Freedy J . Orlando S., Ucv
$13.49
Gaceta No. 6.017, Njr
$2.00
A. Gllotti - R. Ruiz, Colec. Manuales Practicos
$6.67
Gaceta Nº 5.552, Dabosan
$1.00
Jorge E. Burbano Ruiz, Mcgraw Hill
$35.00
William I. Correa Suarez, Livrosca
$6.17