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Transportation of U.S. grains : a modal share analysis, 1978-2004
- Marathon, Nicholas., VanWechel, Tamara., Vachal, Kimberly J., and United States Agricultural Marketing Service. Transportation Services Branch.
- Grain trade -- United States, Grain -- Transportation -- United States, Modal analysis, grains, transportation, and United States
- U.S. Dept. of Agriculture, Agricultural Marketing Service, Transportation and Marketing Programs, Transportation Services Branch
- USDA publications