Miguel Angel Ruiz Jimenes, Diaz de Santos
$26.00
A. Mclennan - A. Bates, Mcgraw Hill
$32.00
Salvador Zubiran, Mcgraw Hill
$56.00
H. Rondon de Sanson, Paredes
$7.50
M. Block - I. Marash, Fc Editorial
$37.00
Gaceta N. 38.763, Njr
$1.00
Hector Peñaranda Q., Luz
$10.00