Jose F. Gonzalez, Mcgraw Hill

$45.60

Julio Sepulveda Saavedra, Mcgraw Hill

$108.00

M. Nordin - V. Frankel, Lippincott

$96.00

T.w. Sadler, Lippincott

$38.40

Cassimeris

$102.00

A. Herrera - M. Granados, Mcgraw Hill

$61.89

I. Martin - Lacave, Diaz de Santos

$72.00

Maria A. Obando, Ula

$12.00

R. Skeel - S. Khlief, Lippincott

$60.00

S. Agabegi - E. Agabegi, Lippincott

$60.00

Burke A. Cunha, Mcgraw Hill

$30.00

J. Kassirer - J. Wong, Lippincott

$88.80

Mario A. Hernandez O., Mcgraw Hill

$39.60

J. Fuente - G. Heinze, Mcgraw Hill

$30.00

D. Nicoll - C. Mark, Mcgraw Hill

$61.90