The Yukaghir and the Yukaghirized Tungus - Jochelson, Waldemar, 1855-1937 (AMS Press, 1975)
Reprint of the 1926 ed. published by E. J. Brill, Leiden, and G. E. Stechert, New York, which was issued as v. 13, pt. 1-3 of the Memoirs of the American Museum of Natural History, and as v. 9, pt. 1-3 of the Publications of the Jesup North Pacific Expedition