BBiblioteksmysterietBiblioteksmysterietde Martin WidmarkEdiciones (1)Biblioteksmysteriet (2007)Bonnier Carlsen · ISBN 9789163855832Más obras de Martin WidmarkNelly Rapp i Upiorna AkademiaThe Diamond Mystery #1 (The Whodunit Detective Agency)The Hotel Mystery #2 (The Whodunit Detective Agency)