$6.07

Antonio Perez Esclarin, San Pablo

$6.00

Prof. Ramon Grau, Ediciones Grau

$7.20

Miguel Del Cura, Paraninfo

$45.60

L. Sagols - J. Linares, Mcgraw Hill

$25.20

$14.40

$1.52

Antonio Perez Esclarin, San Pablo

$8.40

H. Reichmann, Thomson

$42.00

Ana Ponce de Leon, Ccs

$14.40

$10.20

Frida Diaz Barriga Arceo, Mcgraw Hill

$36.00

Antonio Perez Esclarin, San Pablo

$7.30

Fe y Alegria, Estudios

$9.60

Luis Quintana, Mcgraw Hill

$24.00