@book{ Solr-6829, title = {Oinarrizko gramatika / Andres Alberdi}, author = {Alberdi, Andres}, address = {Donostia}, publisher = {: Elkar : Ikastolen Elkartea}, year = {2008}, url = { http://www.elkar.com} url = { http://www.ikastola.net} }