L. Salazar - C. Navarro, Santillana
$4.80
D. Lopez - M. Rodriguez, Everest
$7.50
O. Quiros - J. Quiros, Amolca
$42.00
P. Samuelson - W Nordhaus, Mcgraw Hill
$57.00
Gaceta Nº 38.408, R Graficas
$2.00
Allan Breuwer Carias, Juridica Venezolana
$7.00
Salvador Leal Wilhelm, Vadell Hermanos
$7.00