Curtis M. Rimmerman, Lippincott

$75.60

J. Fuente - G. Heinze, Mcgraw Hill

$30.00

A. Herrera - M. Granados, Mcgraw Hill

$61.89

Trujillo - Becerra- Rivas, Mcgraw Hill

$111.49

R. Baldor - A. Ehrlich, Lippincott

$156.00

T.w. Sadler, Lippincott

$38.40

Miriam Guana, Mcgraw Hill

$61.89

Jose F. Gonzalez, Mcgraw Hill

$45.60

$8.40

Fernando Guzman Toro, Vadell Hermanos

$14.40

Julio Sepulveda Saavedra, Mcgraw Hill

$108.00

Esp. y Mgs. Aura M. Parra, Luz

$8.30

Patrick W. Tank, Lippincott

$42.00

J. Cloherty - E. Eichenwa, Lippincott

$84.16

G. Frendl - R. Urman, Lippincott

$54.40