E. Rodriguez - F. Suarez, Romor
$17.00
R. Ahumada - A.montenegro, Trillas
$8.75
H. Koontz - H. Weihrich, Mcgraw Hill
$71.00
Gaceta No. 6.209, Ml, C.a.
$1.50
Luciano Lupini Bianchi, Ciencias Politica
$6.00
Gaceta, la Piedra
$2.30
Gaceta Nº 6.017, Njr
$2.00