Valentin Gavidia Catalan, Magisterio
$6.00
Iris Gonzalez de Troconis, Funeda
$7.00
Gaceta Nº 39.840, Njr
$2.30
A. Chiang y K. Wainwright, Mcgraw Hill
$46.00
Gaceta No 39.599, R Graficas
$2.00
Roberto H. Frank, Mcgraw Hill
$32.00
Antonio Machado - Allison, Ucv
$8.77
Gaceta Nº 39.668, R Grafica
$2.00