Eduardo Rosset Cardenal, Publisher Fifth Avenue
$4.80
K. Leveno - G. Cunningham, Mcgraw Hill
$276.30
M. Morris Mano - Ch. Kime, Prentice Hall
$22.00
Francisco J. Gonzalez F., Fc Editorial
$30.00
K. Arndt - J. Hsu, Lippincott
$69.29
H. Koontz - H. Weihrich, Mcgraw Hill
$72.00
Angel R. Fajardo H., Editorial Nus Caracas
$5.40
Fernandez, Ra-ma
$47.57