Carlos A. Roldan, Lippincott

$135.60

J. Romero - G. Tena, Mcgraw Hill

$48.00

M. Breskin - K. Dumith, Mcgraw Hill

$69.60

Salvador Zubiran, Mcgraw Hill

$67.20

Schwartz y Otros, Mcgraw Hill

$62.40

R. Walls - M. Murphy, Lippincott

$50.58

Rodolfo Rodriguez C., Mcgraw Hill

$49.20

J. Kassirer - J. Wong, Lippincott

$88.80

Francisco A. Orduña P., Diaz de Santos

$36.00

R. Baldor - A. Ehrlich, Lippincott

$156.00

Roberto Arenas, Mcgraw Hill

$62.40

Vicente Ortiz, Mcgraw Hill

$61.89

Kasper - Braunwald y Otro, Mcgraw Hill

$185.22

$8.40

Esp. y Mgs. Aura M. Parra, Luz

$8.30