http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Teacher-developed materials for language teaching and learning
Astrid Nuñez Pardo, María Fernanda Téllez Téllez, Julio César Gómez Barón (Editors)
Bogotá : Universidad Externado de Colombia, [2018]