http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Proyectos STEAM para la educación primaria
1 online resource : illustrations, photographs.
Ileana Ma. Greca, Jesús Ángel Meneses Villagrá (coords.) ; Agustín Adúriz-Bravo [and 8 others].