Marcos Fidel Barrera, Quiron

$9.57

Yilmar Campbell, Universidad Carabobo

$8.00

M. Martinez Lurdez, Magrawhill

$25.00

Carlos Sabino, Panapo

$5.46

Carlos Lomas, Magisterio

$7.89

Margarita A. de Sanchez, Trillas

$32.89

Marcos Fidel Barrera, Sypal

$11.30

R. Hernandez - N. Mendoza, Mcgraw Hill

$25.00

Mirian Balestrini Acuña, Servicio Editorial

$12.39

Dorothy Adkins Wood, Trillas

$22.77

J. Hessen, Juceda

$8.00

Alexis G. Perez, Fedupel

$10.43

Aura Bavaresco de Prieto, Luz

$11.52

Fidias G. Arias, Episteme

$8.04

F. Kerlinger - H. Lee, Mcgraw Hill

$43.29