1. Darmstädter Ausgabe Author/Creator: Humboldt, Alexander von, 1769-1859 Publication/Creation: Darmstadt : Wissenschaftliche Buchgesellschaft, 2008 Resource Type: Book Edition: 2., durchgesehene Auflage. Access & Availability: Loading
2. Distribution and movements of desert plants Author/Creator: Spalding, Volney M. 1849-1918. (Volney Morgan) Publication/Creation: Washington, D.C. : Carnegie Institution of Washington, 1909 Resource Type: Book Access & Availability: Loading