W. Bauer - G. Westfall, Mcgraw Hill
$40.00
Gaceta Nº 5.805, Njr
$2.00
Hector Turuhpial Cariello, Funeda
$6.00
Carlos Perez Fernandez, T.s.j.
$7.00
Tolo M. Rimsky, Mcgraw Hill
$41.00
H. Koontz - H. Weihrich, Mcgraw Hill
$72.00
H. Rondon de Sanson, Paredes
$7.50
Gaceta Nº 40.112, Njr
$1.00
M. Criado - J. Casa, Pearson
$18.00
Gaceta Nº 39.668, Njr
$2.00