Title: Sistema naimenovaniĭ indoevropeĭskikh rek s nachalʹnykh vremen
Subjects: Indo-European antiquities, Indo-European languages, Etymology, Names, Onomastics, Geography. Anthropology. Recreation, History of geography, Hydrology. Water, Language and literature, Language. Linguistic theory. Comparative grammar, Linguistic geography, Philology. Linguistics, Toponymy