Yilmar Campbell, Universidad Carabobo

$9.60

Margarita A. de Sanchez, Trillas

$39.46

L. Carrera - M. Vasquez, Panapo

$7.47

Odalis Cañizalez, Cv. Editores

$15.00

Mario Tamayo y Tamayo, Limusa

$27.60

F. Barriga - G. Hernandez, Mcgraw Hill

$33.60

Piergiorgio Corbetta, Mcgraw-hill

$45.60

Margarita A. de Sanchez, Trillas

$39.46

Marcos Fidel Barrera, Sypal

$13.56

Aura Bavaresco de Prieto, Luz

$13.82

Alexis G. Perez, Fedupel

$12.51

Carlos Lomas, Magisterio

$9.47

S. Dominguez - E. Sanchez, Mcgraw Hill

$24.00

Magaly Torres de Cardenas, Ucv

$10.52

Margarita A. de Sanchez, Trillas

$39.46