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Author: N. Lobachevski
Title: Geometrical Researches on the Theory of Parallels
Additional book information: Translated from the original by G. B. Halsted. New edition. Chicago and London, Open Court, 1914. 8vo. 50 pages. Cloth, price $1.25.
Reviewer: R. C. Archibald
Journal: Bull. Amer. Math. Soc. 24 (1918), 437-442