The Colorado Plateau II Biophysical, Socioeconomic, and Cultural Research Edited by Charles vanRiper, III; David J. Mattson 448 pp. / 7.0 x 10.0 / 2005 Cloth (978-0-8165-2526-3)
The Colorado Plateau III Integrating Research and Resources Management for Effective Conservation Charles vanRiper, III; Mark K. Sogge 432 pp. / 7.0 x 10.0 / 2008 Cloth (978-0-8165-2738-0)