Carlos J. Galan Gutierrez, Fc Editorial

$33.60

Alfonso Bucero, Diaz de Santos

$22.80

Andres Mill de Pool, Angeles Ediciones

$8.40

R. Chase - F. Jacobs, Mcgraw Hill

$33.60

F. Hillier - G. Lieberman, Mcgraw Hill

$50.40

J. Lopera - M. Bernal, Intermedio

$8.87

M. Jose Escudero Serrano, Paraninfo

$49.20

S. Hernandez y Rodriguez, Mcgraw Hill

$62.81

Jesus Timoteo Alvarez, Diaz de Santos

$31.20