Burke A. Cunha, Mcgraw Hill

$30.00

Trujillo - Becerra- Rivas, Mcgraw Hill

$111.49

T. Browne - G. Holmes, Lippincott

$60.00

O. Quiros - J. Quiros, Amolca

$50.40

M. Nordin - V. Frankel, Lippincott

$96.00

Rodolfo Rodriguez C., Mcgraw Hill

$49.20

Joseph E. Muscolino, Lippincott

$69.60

$8.40

D. Nicoll - C. Mark, Mcgraw Hill

$61.90

Alexandro Bonifaz, Mcgraw Hill

$60.00

Thomas M. de Fer, Lippincott

$93.60

S. Agabegi - E. Agabegi, Lippincott

$60.00

Cassimeris

$102.00

Mario A. Hernandez O., Mcgraw Hill

$39.60

Leonard Crowley, Mcgraw Hill

$68.40