Olga and Olafde Anders HansonMateriasJuvenile literatureVowelsEnglish languageRebusesPronunciationEnglish language, juvenile literatureEdiciones (1)Olga and Olaf (2005)Abdo Pub. · inglésMás obras de Anders HansonMeteorologist's toolsBiggest, baddest book of piratesBiggest, baddest book of bugs