Guerrero Hardy Alvaro, Funeda
$6.00
D. Fitzgibbon - J. Loeser, Lippincott
$125.00
Anil K. Lalwani, Macgraw Hill
$48.00
S. Hernandez y Rodriguez, Mcgraw Hill
$52.34
Roberto H. Frank, Mcgraw Hill
$32.00
Gaceta N. 39.912, la Piedra
$2.50
Hector R. Peñaranda Q., Ediluz
$13.13