@book{ Solr-49900, title = {Billinghurst gazteluaren kasu bitxia / testua, David Fernández Sifres ; marrazkiak, Albertoyos ; [itzulpena, Aitor Arana]}, series = {Avante detektibe eskola}, author = {Fernández Sifres, David}, editor = {Albertoyos}, editor = {Arana, Aitor}, address = {Amorebieta-Etxano}, publisher = {Ibaizabal}, year = {2018}, url = {https://www.ibaizabal.com/nuestros-productos/literatura/literatura-infantil/a-partir-de-8-anos/billinghurst-gazteluaren-kasu-bitxia} }