Carmelo Borrego, Livrosca
$13.89
F. Kerlinger - H. Lee, Mcgraw Hill
$43.29
Angel R. Fajardo H., Editorial Nus Caracas
$5.40
Hector R. Peñaranda Q., Cpluz
$10.00
Luis Eduardo Mendoza, Vadell
$6.00
D. Fitzgibbon - J. Loeser, Lippincott
$125.00
Ronald Chacin Fuenmayor, Luz
$6.00