Table-top earthquakes : a demonstration of seismology for teachers and students that can be used to augment lessons in earth science, physics, math, social studies, geography / by John C. Lahr.
Imprint
Denver, CO : U.S. Dept. of the Interior, U.S. Geological Survey, [2001]
Mode of access: Internet from the USGS web site. Address as of 8/3/04: http://pubs.usgs.gov/of/1998/ofr-98-0767/; current access is available via PURL.