@book{ Solr-9943, title = {Bi ta bi : [prozedura koadernoa: Matematika LMH 1, I] / egileak, Ibaizabal-Edelvives Taldea; marrazkiak, Luis Miguel Pérez}, editor = {Pérez, Luis Miguel}, address = {Amorebieta-Etxano}, publisher = {: Ibaizabal}, year = {1992}, note = {1992.09.09}, url = { http://www.ibaizabal.com} }