J. Vargas P. - P. Garcia, Romor
$7.13
B. Barcenas - M. Cottin, la Cadena Capriles
$2.00
Gaceta Nº 38.659, la Piedra
$1.09
Gaceta Nº 38.408, R Graficas
$2.00
M. Morris Mano - Ch. Kime, Prentice Hall
$22.00
Gaceta Nº 40.358, Njr
$1.40
Dr. Ing. Harry Osers, Refolit C.a.
$12.28
Piergiorgio Corbetta, Mcgraw-hill
$38.00