Trujillo - Becerra- Rivas, Mcgraw Hill

$111.49

Schwartz y Otros, Mcgraw Hill

$62.40

O. Quiros - J. Quiros, Amolca

$50.40

Rebecca L. Shoener, Mcgraw Hill

$42.00

R. Walls - M. Murphy, Lippincott

$50.58

R. Hyatt - P. Scanlon, Lippincott

$28.20

E. Mayeaux - J. Cox, Lippincott

$170.40

C. Dieguez - R. Yturriaga, Mcgraw Hill

$48.00

Roberto Arenas, Mcgraw Hill

$62.40

Tintinalli, Mcgrawhill

$93.60

C. Stone - R. Humphries, Mcgraw Hill

$108.00

Joseph E. Muscolino, Lippincott

$69.60

Esp. y Mgs. Aura M. Parra, Luz

$8.30

Julio Sepulvedad S., Mcgraw Hill

$40.80

Alexandro Bonifaz, Mcgraw Hill

$60.00