Lehrbuch; Arbeitsbuch; Course book; Textbook; Workbook; Übungsbuch; Introductions (to linguistics) ; Kulturvergleich; Language and culture ; Sprachnationalismus; Nationalism (linguistic) ; Nationalismus (sprachlicher) ; Language and nationality ; Areallinguistik; Geolinguistik; Geolinguistics; Linguistic geography ; Language change ; Einfluss von Sprachen aufeinander; Sprachberührung; Areallinguistik; Languages in contact ; Minoritätensprache; Minority language ; Typologie; Typology; Language typology ; Language variation/Dialectology ; Italian (central dialects) ; Central Italian dialects ; Italian (northern dialects) ; Northern Italian dialects ; Italian (southern dialects) ; Southern Italian dialects
