Volcano and Earthquake Monitoring Plan for the Yellowstone Volcano Observatory, 2006-2015 [electronic resource] / by the Yellowstone Volcano Observatory.
Mode of access: Internet from USGS web site. Address as of 11/13/06: http://pubs.usgs.gov/sir/2006/5276/sir2006-5276.pdf; current access available via PURL.
Note
Title from PDF title screen (viewed on Nov. 13, 2006).
At head of title on HTML title screen: Yellowstone Volcano Observatory.