User Interface Text GuidelinesExternal ReferencesVersion: 4.3On this pageExternal ReferencesMain en-GB Sourcesgov.uk (licence)The BBCEuropean Commission Directorate-General for TranslationOther en-GB SourcesThe Guardian - (usage rights)The Economist - pdfThe TelegraphUseful ReadingNielsen Norman GroupUI SourcesMozillaAppleMicrosoftPunctuation Codeshttps://websitebuilders.com/tools/html-codes/punctuation/