Cesar R. Gallo P., Ebvc

$7.80

Jesus Alirio Silva, Cobo

$6.00

Johnson Leenders Flynn, Mcgarw Hill

$48.26

Humberto Gutierrez Pulido, Mcgraw Hill

$42.00

S. Hernandez y Rodriguez, Mcgraw Hill

$32.40

Gareth Jones - Jennifer M, Mcgraw Hill

$42.00

Bradt, Mcgraw Hill

$18.00

J. Lopera, Intermedio

$8.35

Cesar R. Gallo P., Ebvc

$7.80

Roger G. Schroeder, Mcgraw Hill

$56.40

H. Koontz - H. Weihrich, Mcgraw Hill

$86.40

Rafael E. Davila Cardenas, Ucv

$14.74

M. Yarnell - Rene R. Yarn, Tm Prima

$7.30

Hector Nestor Martinez, Ediciones Macchi

$13.57

Guisande G. Castor

$44.40