1. Summary of U.S. threatened and endangered species listings, 1976-2019
- Author(s):
- Knowles, Michael S.; Flather, Curtis H.
2. Wildlife population and harvest data for Forest Service 2010 RPA assessment
			 
			
			- Author(s):
- Flather, Curtis H.; Knowles, Michael S.; Jones, Martin F.; Schilli, Carol J.
 
       U.S. Department of Agriculture
	U.S. Department of Agriculture