Trujillo - Becerra- Rivas, Mcgraw Hill

$111.48

G. Frendl - R. Urman, Lippincott

$54.39

J. Fuente - G. Heinze, Mcgraw Hill

$30.00

Maria A. Obando, Ula

$12.00

Roberto Arenas, Mcgraw Hill

$62.40

Insp, Mcgraw Hill

$31.20

O. Quiros - J. Quiros, Amolca

$50.40

Bezares, Mcgraw Hill

$36.00

I. Martin - Lacave, Diaz de Santos

$72.00

Julio Sepulvedad S., Mcgraw Hill

$40.80

Linda E. Muños Espinosa, Mcgraw Hill

$144.00

Lynn S. Bickley, Lippincott

$125.12

S. Agabegi - E. Agabegi, Lippincott

$60.00

Kasper - Braunwald y Otro, Mcgraw Hill

$185.22

Esp. y Mgs. Aura M. Parra, Luz

$8.30