Curtis M. Rimmerman, Lippincott

$75.60

R. Hyatt - P. Scanlon, Lippincott

$28.20

Julio Sepulvedad S., Mcgraw Hill

$40.80

Jose F. Gonzalez, Mcgraw Hill

$45.60

Thomas M. de Fer, Lippincott

$93.60

D. Nicoll - C. Mark, Mcgraw Hill

$61.89

J. Fuente - G. Heinze, Mcgraw Hill

$30.00

Bezares, Mcgraw Hill

$36.00

Miriam Guana, Mcgraw Hill

$61.89

Esp. y Mgs. Aura M. Parra, Luz

$8.30

C. Dieguez - R. Yturriaga, Mcgraw Hill

$48.00

B. Shakuntala Baliga, Mcgraw Hill

$108.00

Jose Saban Ruiz, Diaz de Santos

$96.00

Rebecca L. Shoener, Mcgraw Hill

$42.00

Maria A. Obando, Ula

$12.00