Joseph J. Zorc, Lippincott

$75.60

Jesus Rodriguez Lastra, Universidad de Carabobo

$18.00

Miguel Angel Ruiz Jimenes, Diaz de Santos

$31.20

T. Gomella - Cunningham, Mcgraw Hill

$60.00

Greydanus - Feinberg - Pa, Mcgraw Hill

$54.60

Pedro Del Castillo, Diana

$11.20

Rogelio Rodriguez Bonito, Mcgraw Hill

$61.90

Him, Mcgraw Hill

$240.00

R. Rodriguez Herrera, Mcgraw Hill

$36.00