M. Velhagen - E. Calderon, Trillas
$6.00
Jorge E. Burbano Ruiz, Mcgraw Hill
$35.00
Gaceta Nº 38.596, Njr
$2.85
Gyawaly, Lippincott
$50.23
Ma. Gabriela Crespo, Juridica Venezolana
$7.00
Gaceta N. 6.013, Rgraficas
$2.00
Gaceta Nº 30.597, Njr
$1.00