Leonard Crowley, Mcgraw Hill

$68.40

Rebecca L. Shoener, Mcgraw Hill

$42.00

D. Nicoll - C. Mark, Mcgraw Hill

$61.89

Thomas M. de Fer, Lippincott

$93.60

Alexandro Bonifaz, Mcgraw Hill

$60.00

Mario A. Hernandez O., Mcgraw Hill

$39.60

O. Quiros - J. Quiros, Amolca

$50.40

S. Mcphee - M. Papadakis, Mcgraw Hill

$93.60

M. Breskin - K. Dumith, Mcgraw Hill

$69.60

Burke A. Cunha, Mcgraw Hill

$30.00

Maria A. Obando, Ula

$12.00

Julio Sepulveda Saavedra, Mcgraw Hill

$108.00

R. Skeel - S. Khlief, Lippincott

$60.00

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

$46.80

Carlos A. Roldan, Lippincott

$135.60