J. Fuente - G. Heinze, Mcgraw Hill

$30.00

E. Mayeaux - J. Cox, Lippincott

$170.40

R. Skeel - S. Khlief, Lippincott

$60.00

D. Fitzgibbon - J. Loeser, Lippincott

$150.00

J. Garcia - J. Lopez, Mcgraw Hill

$56.40

Roberto Arenas, Mcgraw Hill

$62.40

R. Zane - J. Kosowsky, Lippincott

$55.20

Alexandro Bonifaz, Mcgraw Hill

$60.00

Francisco A. Orduña P., Diaz de Santos

$36.00

Esp. y Mgs. Aura M. Parra, Luz

$8.30

Joseph E. Muscolino, Lippincott

$69.60

C. Braun - C. Anderson, Lippincott

$114.00

A. Herrera - M. Granados, Mcgraw Hill

$61.89

Bezares, Mcgraw Hill

$36.00

Trujillo - Becerra- Rivas, Mcgraw Hill

$111.48