Esp. y Mgs. Aura M. Parra, Luz

$8.30

M. Nordin - V. Frankel, Lippincott

$96.00

T. Browne - G. Holmes, Lippincott

$60.00

Francisco A. Orduña P., Diaz de Santos

$36.00

Mario A. Hernandez O., Mcgraw Hill

$39.60

F.j. Blanco - J.d. Cañete, Panamericana

$46.80

Vicente Ortiz, Mcgraw Hill

$61.89

R. Skeel - S. Khlief, Lippincott

$60.00

Lynn S. Bickley, Lippincott

$125.12

J. Kassirer - J. Wong, Lippincott

$88.80

A. Herrera - M. Granados, Mcgraw Hill

$61.89

Maria A. Obando, Ula

$12.00

Julio Sepulveda Saavedra, Mcgraw Hill

$108.00

J. Cloherty - E. Eichenwa, Lippincott

$84.15

S. Agabegi - E. Agabegi, Lippincott

$60.00