Kelly, J. F. (1992). Forest statistics for Northeast Texas counties, 1992. USDA Forest Service, Southern Forest Experiment Station.
Chicago-Zitierstil (17. Ausg.)Kelly, John F. Forest Statistics for Northeast Texas Counties, 1992. New Orleans, La: USDA Forest Service, Southern Forest Experiment Station, 1992.
MLA-Zitierstil (9. Ausg.)Kelly, John F. Forest Statistics for Northeast Texas Counties, 1992. USDA Forest Service, Southern Forest Experiment Station, 1992.
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