Feliu - Tineo - Gonzalez, Cobo
$8.70
R. Ahumada - A.montenegro, Trillas
$8.75
William A. Fleckenstein, Mcgraw Hill
$20.00
Maria Teresa Machado, Maria Teresa Machado
$7.00
Freedy J . Orlando S., Ucv
$13.49
Luis Fraga Lo Curto, Funeda
$7.00
Salvador Zubiran, Mcgraw Hill
$56.00