by Dale E. Wilberg and Bernard J. Stolp ; prepared in cooperation with the U.S. Department of the Interior, Bureau of Land Management, Grand Staircase-Escalante National Monument
Title from PDF title screen (viewed on Mar. 15, 2005).
Includes bibliographical references (pages 11-13).
Mode of access: Internet at the USGS web site. Address as of 9/19/08: http://pubs.usgs.gov/sir/2004/5233/PDF/SIR2004%5F5233.pdf ; current access is available via PURL.