@book{ Solr-12170, title = {Bi ta bi : [prozedura koadernoa: Matematika LMH4, I] / egileak, Ibaizabal-Edelvives Taldea}, address = {Amorebieta-Etxano}, publisher = {: Ibaizabal}, year = {1993}, note = {1993.05.20}, url = { http://www.ibaizabal.com} }