O. Quiros - J. Quiros, Amolca

$50.40

Schwartz y Otros, Mcgraw Hill

$62.40

Bezares, Mcgraw Hill

$36.00

D. Fitzgibbon - J. Loeser, Lippincott

$150.00

C. Dieguez - R. Yturriaga, Mcgraw Hill

$48.00

Esp. y Mgs. Aura M. Parra, Luz

$8.30

Cassimeris

$102.00

T.w. Sadler, Lippincott

$38.40

Julio Sepulveda Saavedra, Mcgraw Hill

$108.00

Francisco A. Orduña P., Diaz de Santos

$36.00

G. Frendl - R. Urman, Lippincott

$54.40

Leonard Crowley, Mcgraw Hill

$68.40

B. Shakuntala Baliga, Mcgraw Hill

$108.00

Carlos A. Roldan, Lippincott

$135.60

R. Skeel - S. Khlief, Lippincott

$60.00