G. Rodriguez - J. Vaquero, Diaz de Santos

$63.60

Miriam Guana, Mcgraw Hill

$61.89

S. Agabegi - E. Agabegi, Lippincott

$60.00

Julio Sepulvedad S., Mcgraw Hill

$40.80

Burke A. Cunha, Mcgraw Hill

$30.00

Salvador Zubiran, Mcgraw Hill

$67.20

Alexandro Bonifaz, Mcgraw Hill

$60.00

C. Stone - R. Humphries, Mcgraw Hill

$108.00

Roberto Arenas, Mcgraw Hill

$62.40

Fernando Guzman Toro, Vadell Hermanos

$14.40

M. Nordin - V. Frankel, Lippincott

$96.00

R. Zane - J. Kosowsky, Lippincott

$55.20

O. Quiros - J. Quiros, Amolca

$50.40

Curtis M. Rimmerman, Lippincott

$75.60

J. Garcia - J. Lopez, Mcgraw Hill

$56.40