F. Kerlinger - H. Lee, Mcgraw Hill

$51.94

Alexis G. Perez, Fedupel

$12.51

Yilmar Campbell, Universidad Carabobo

$9.60

J. Hessen, Juceda

$9.60

L. Carrera - M. Vasquez, Panapo

$7.47

Jacqueline Hurtado, Quiron

$15.13

Aura Marina Bavaresco, la Universidad Del Zulia

$9.00

Margarita A. de Sanchez, Trillas

$39.46

Mario Tamayo y Tamayo, Limusa

$27.60

Piergiorgio Corbetta, Mcgraw-hill

$45.60

F. Barriga - G. Hernandez, Mcgraw Hill

$33.60

Margarita A. de Sanchez, Trillas

$39.46

Aura Bavaresco de Prieto, Luz

$13.82

Marcos Fidel Barrera, Sypal

$13.56

Julian Rodriguez, San Pablo

$13.82