G. Katz - M. Katz, Mcgraw Hill

$5.00

Juan J. Gutierrez, Girasol

$9.20

Marcela Hinojosa de Coria, Trillas

$7.26

Elba Albujas, Discolar

$11.00

Clara Martinez, Girasol

$18.00

Ines Silva Legorbu, Santillana

$9.49

Pablo Bravo, Biosfera

$19.80

Ana Maria Maqueo, Noriega

$17.16

$2.00

Gisela Soto, Cobo

$10.00

$23.02

Maria V. Arias Escalante, Excelencia

$9.95

Fernando Gonzalez, Estudios - Anaya

$9.95

Fernando Gonzalez Lucini, Estudios - Anaya

$9.95

I. Brito - M. Rull, Santillana

$21.51