Alberto Arias Amaro, Romor
$7.00
Gaceta N° 38.536, la Piedra
$2.00
Aderito de Sousa F., Mcgraw Hill
$51.58
Iris Gonzalez de Troconis, Funeda
$7.00
Fidias G. Arias, Episteme
$8.04
Marco A. Romero Rivero, Vadell
$7.00
Gaceta Nº 39.095, Njr
$1.40
Ricardo Bulmez, Urania
$15.00