$10.20

Livian Navarro Caro, Panapo

$1.20

H. Reichmann, Thomson

$42.00

Frida Diaz Barriga Arceo, Mcgraw Hill

$36.00

Norman E. Gronlund, Trillas

$34.91

Prof. Ramon Grau, Ediciones Grau

$7.20

Luis Quintana, Mcgraw Hill

$24.00

$10.44

L. Sagols - J. Linares, Mcgraw Hill

$25.20

Carlos Marx, Literatura Narrativa

$10.20

Luis Quintana, Mcgraw Hill

$12.00

Abel Cortese, Planeta

$30.00

Victor Colina, Biosfera

$9.24

Miguel Del Cura, Paraninfo

$45.60

Antonio Perez Esclarin, San Pablo

$7.30