On the origin of languages : studies in linguistic taxonomy 2026-02-15T21:04:56+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - Ruhlen, Merritt, 1944- (Stanford University Press, 1994)