1. Paleobiology of Climactichnites : an enigmatic Late Cambrian fossil Author/Creator: Yochelson, Ellis L. 1928-2006. (Ellis Leon) Publication/Creation: Washington, D.C. : Smithsonian Institution Press, 1993 Resource Type: Book Access & Availability: Loading
2. The National Museum of Natural History : 75 years in the Natural History Building Author/Creator: Yochelson, Ellis L. 1928-2006. (Ellis Leon) Publication/Creation: Washington : Published on the occasion of the Diamond Jubilee of the Natural History Building (1910-1985) for the National Museum of Natural History, Smithsonian Institution, by the Smithsonian Institution Press, [1985] Resource Type: Book Access & Availability: Loading
3. Images of the U.S. Geological Survey, 1879-1979 Author/Creator: Yochelson, Ellis L. 1928-2006. (Ellis Leon) Publication/Creation: [Arlington, VA] : U.S. Dept. of the Interior, Geological Survey, [1979] Resource Type: Book Access & Availability: Loading