1. County-level agroforestry reported in the 2017 and 2022 U.S. Census of Agriculture (2nd Edition) 
			 
			
			- Author(s):
- Kellerman, Todd A.; Feibel, Samuel
2. County-level agroforestry reported in the 2017 U.S. Census of Agriculture
			 
			
			- Author(s):
- Kellerman, Todd A.
3. Nebraska windbreaks original plantings (1935-1942)
			 
			
			- Author(s):
- Carman, Richard; Kellerman, Todd A.
 
       U.S. Department of Agriculture
	U.S. Department of Agriculture