Incoming Resources
- Volcanoes of the world, prepared by Leslie D. Morris, Tom Simkin, Herbert Meyers ; volcano data compiled by Smithsonian Institution, Washington, D.C.
- The earth's fractured surface ; Living on the edge, [West Coast of U.S.], produced by the Cartographic Division, National Geographic Society ; John F. Shupe, chief cartographer
- This dynamic planet, world map of volcanoes, earthquakes, impact craters, and plate tectonics, by Tom Simkin ... [et al.] ; cartography and graphic design by Will R. Stettner, with contributions by Antonio Villaseñor, and edited by Katharine S. Schindler ; U.S. Department of the Interior, U.S. Geological Survey ; prepared in cooperation with the Smithsonian Institution and the U.S. Naval Research Laboratory
- This dynamic planet, world map of volcanoes, earthquakes, and plate tectonics, compiled by Tom Simkin ... [et al.] ; prepared in cooperation with the Smithsonian Institution