http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
720, 21 pages : color illustrations ; 29 cm. + 6 teaching guides (Guía para maestros; 31 x 31 cm.) + 1 reader/ exercise book (Un viaje al descubrimiento).
autoras, Alma Flor Ada, F. Isabel Campoy.
At head of title: Houghton Mifflin Harcourt.
"Grado 5."-- Back cover of teaching guides.