Raunkiær B. Gervais Lyons: Afghanistan: The Buffer State. Great Britain and Russia in Central Asia. (8VO. VII + 282 Sider + Index. 2 Kort. — Madras:Higginbotham&Co. 1910 London : Luzac & Co. gt [Internet]. 1914 Jan. 1 [cited 2024 Jul. 17];22. Available from: https://tidsskrift.dk/geografisktidsskrift/article/view/46839