19357.
Havinga (Anna) (
ed.),
Langer (Nils) (
ed.): Invisible languages in the nineteenth century / Anna
Havinga and Nils
Langer, editors.
Oxford; Bern; Berlin; Bruxelles; Frankfurt am Main; New York; Wien: Peter Lang, 2015. vi + 308 pp. (Historical sociolinguistics, 2).