G. Rodriguez - J. Vaquero, Diaz de Santos

$63.60

J. Fuente - G. Heinze, Mcgraw Hill

$30.00

Mario A. Hernandez O., Mcgraw Hill

$39.60

Vicente Ortiz, Mcgraw Hill

$61.89

Carlos A. Roldan, Lippincott

$135.60

O. Quiros - J. Quiros, Amolca

$50.40

Fernando Guzman Toro, Vadell Hermanos

$14.40

Cassimeris

$102.00

Miriam Guana, Mcgraw Hill

$61.89

Leonard Crowley, Mcgraw Hill

$68.40

S. Agabegi - E. Agabegi, Lippincott

$60.00

A. Herrera - M. Granados, Mcgraw Hill

$61.89

Esp. y Mgs. Aura M. Parra, Luz

$8.30

M. Breskin - K. Dumith, Mcgraw Hill

$69.60

Salvador Zubiran, Mcgraw Hill

$67.20