Francisco A. Orduña P., Diaz de Santos

$36.00

Julio Sepulvedad S., Mcgraw Hill

$40.80

R. Skeel - S. Khlief, Lippincott

$60.00

J. Garcia - J. Lopez, Mcgraw Hill

$56.40

Miriam Guana, Mcgraw Hill

$61.89

C. Stone - R. Humphries, Mcgraw Hill

$108.00

Curtis M. Rimmerman, Lippincott

$75.60

Insp, Mcgraw Hill

$31.20

Schwartz y Otros, Mcgraw Hill

$62.40

J. Romero - G. Tena, Mcgraw Hill

$48.00

C. Dieguez - R. Yturriaga, Mcgraw Hill

$48.00

R. Baldor - A. Ehrlich, Lippincott

$156.00

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

$46.80

Leonard Crowley, Mcgraw Hill

$68.40

Mario A. Hernandez O., Mcgraw Hill

$39.60