R. Ahumada - A.montenegro, Trillas
$8.75
Gaceta Nº 39.112, Njr
$2.00
Omar Rodriguez Aguero, Atenea
$7.17
K. Arndt - J. Hsu, Lippincott
$69.29
Roberto H. Frank, Mcgraw Hill
$32.00
Alejandro Gallotti, Juridica Venezolana
$5.00
D. Zill - P. Shanahan, Cengage Learning
$74.14
Margarita A. de Sanchez, Trillas
$10.00