(1)
Olufsen, O. Explorations in Turkestan With an Account of The Basin of Eastern Persia and Sistan. Expedition of 1903, under the Direction of Raphael Pumpelly. Washington. D. G.; Published by the Carnegie Institution of Washington, April 1905. Kvart. 324 S. Med Talrige Illustrationer, Kort Og Kortskitser. gt 1906, 18.