 | Optimum number | (2) |
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 | Optimum number, size, and location of livestock auction markets in Tennessee / by B.G. Hicks and M.B. Badenhop. Hicks, Billy G. Knoxville, University of Tennessee, Agricultural Experiment Station, 1971. | |
| Optimum number, size and location of livestock auction markets in West Virginia / . Kuehn, John P. : West Virginia University Agricultural Experiment Station, 1973. | |
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