J. Fuente - G. Heinze, Mcgraw Hill

$30.00

Trujillo - Becerra- Rivas, Mcgraw Hill

$111.48

R. Hyatt - P. Scanlon, Lippincott

$28.20

Carlos A. Roldan, Lippincott

$135.60

Bezares, Mcgraw Hill

$36.00

J. Garcia - J. Lopez, Mcgraw Hill

$56.40

R. Skeel - S. Khlief, Lippincott

$60.00

J. Cloherty - E. Eichenwa, Lippincott

$84.15

R. Baldor - A. Ehrlich, Lippincott

$156.00

Alexandro Bonifaz, Mcgraw Hill

$60.00

C. Dieguez - R. Yturriaga, Mcgraw Hill

$48.00

I. Martin - Lacave, Diaz de Santos

$72.00

Rodolfo Rodriguez C., Mcgraw Hill

$49.20

Mario A. Hernandez O., Mcgraw Hill

$39.60

C. Braun - C. Anderson, Lippincott

$114.00