1. De distributione geographica plantarum : secundum coeli temperiem et altitudinem montium, prolegomena Author/Creator: Humboldt, Alexander von, 1769-1859 Publication/Creation: Lutetiae Parisiorum [Paris] : In Libraria Graeco-Latino-Germanica, 1817 Format: Book Access & Availability: Loading
2. Description and validation of an automated methodology for mapping mineralogy, vegetation, and hydrothermal alteration type from ASTER satellite imagery with examples from the San Juan Mountains, Colorado Author/Creator: Rockwell, Barnaby W. (Barnaby Whitson) Publication/Creation: Reston, VA : U.S. Dept. of the Interior, U.S. Geological Survey, 2012 Format: Map Access & Availability: Loading