Hector R. Peñaranda Q., Ediluz

$15.75

Dr. Alberto Jose la Roche, Cibel Gutierrez

$8.40

Gert Kummerow, Mcgraw Hill

$12.00

I. de Valera - J. Salaver, Liber

$12.00

Hector R. Peñaranda Q., Cpluz

$12.00

Jose Aguilar Gorrondona, Ucab

$18.78

Arquimedes E. Gonzalez F.

$19.20

Carmen Sue Espinoza, Universidad de Carabobo

$16.18

Omar Rodriguez Aguero, Atenea

$8.60

James-otis Rodner S., Academia de Ciencias

$7.20

Mauricio Rodriguez F., Livrosca

$13.89

A. Rengel - Romberg, Organizacion Capriles

$36.51

Mary Sol Grateron Garrido, Paredes

$15.60

F. Petit Da Costa, Ediciones Liber

$12.00

Freddy Zambrano, Atenea

$7.03