Roberto Arenas, Mcgraw Hill

$62.40

Linda E. Muños Espinosa, Mcgraw Hill

$144.00

A. Herrera - M. Granados, Mcgraw Hill

$61.89

Mario A. Hernandez O., Mcgraw Hill

$39.60

Fernando Guzman Toro, Vadell Hermanos

$14.40

J. Fuente - G. Heinze, Mcgraw Hill

$30.00

C. Braun - C. Anderson, Lippincott

$114.00

J. Cloherty - E. Eichenwa, Lippincott

$84.15

T.w. Sadler, Lippincott

$38.40

E. Mayeaux - J. Cox, Lippincott

$170.40

Leonard Crowley, Mcgraw Hill

$68.40

Insp, Mcgraw Hill

$31.20

Francisco A. Orduña P., Diaz de Santos

$36.00

G. Frendl - R. Urman, Lippincott

$54.39

$8.40