Julian Rodriguez, San Pablo

$13.82

Marcos Fidel Barrera, Sypal

$13.56

Alexis G. Perez, Fedupel

$12.51

F. Barriga - G. Hernandez, Mcgraw Hill

$33.60

M. Martinez Lurdez, Magrawhill

$30.00

W. Hurley - C. Denegar, Lippincott

$88.28

Rafael Benitez Dominguez, Cadiz

$14.73

Mirian Balestrini Acuña, Servicio Editorial

$14.86

Margarita A. de Sanchez, Trillas

$39.46

Marcos Fidel Barrera, Quiron

$11.48

Carlos Lomas, Magisterio

$9.47

Piergiorgio Corbetta, Mcgraw-hill

$45.60

Margarita A. de Sanchez, Trillas

$39.46

L. Carrera - M. Vasquez, Panapo

$7.47

Fidias G. Arias, Episteme

$9.64