Ma. Gabriela Crespo, Juridica Venezolana
$7.00
Salvador Zubiran, Mcgraw Hill
$56.00
M. Nordin - V. Frankel, Lippincott
$80.00
Gaceta Nº 1.575, Njr
$2.00
P. Samuelson - W Nordhaus, Mcgraw Hill
$57.00
Sue Kay - Vaughan Jones, Macmillan
$1.00
H. Rondon de Sanson, Paredes
$7.50