Thomas M. de Fer, Lippincott

$93.60

Francisco A. Orduña P., Diaz de Santos

$36.00

Salvador Zubiran, Mcgraw Hill

$67.20

Joseph E. Muscolino, Lippincott

$69.60

Maria A. Obando, Ula

$12.00

A. Herrera - M. Granados, Mcgraw Hill

$61.89

R. Skeel - S. Khlief, Lippincott

$60.00

O. Quiros - J. Quiros, Amolca

$50.40

J. Garcia - J. Lopez, Mcgraw Hill

$56.40

Gerard M. Doherty, Mcgraw Hill

$117.60

John T. Daugirdas, Lippincott

$86.40

R. Zane - J. Kosowsky, Lippincott

$55.20

M. Breskin - K. Dumith, Mcgraw Hill

$69.60

Insp, Mcgraw Hill

$31.20

C. Stone - R. Humphries, Mcgraw Hill

$108.00