Alexandro Bonifaz, Mcgraw Hill

$60.00

Thomas M. de Fer, Lippincott

$93.60

Leonard Crowley, Mcgraw Hill

$68.40

C. Stone - R. Humphries, Mcgraw Hill

$108.00

Esp. y Mgs. Aura M. Parra, Luz

$8.30

Julio Sepulvedad S., Mcgraw Hill

$40.80

J. Garcia - J. Lopez, Mcgraw Hill

$56.40

C. Braun - C. Anderson, Lippincott

$114.00

J. Kassirer - J. Wong, Lippincott

$88.80

D. Cline - O. Ma -, Mcgraw Hill

$134.40

Schwartz y Otros, Mcgraw Hill

$62.40

Mario A. Hernandez O., Mcgraw Hill

$39.60

P. Paulman - A. Paulman, Wolters Klumer

$82.09

G. Rodriguez - J. Vaquero, Diaz de Santos

$63.60

Curtis M. Rimmerman, Lippincott

$75.60