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2. 1985 Final Report: Perennial species for optimum production of herbaceous biomass in the Piedmont;Parrish,1986
3. Perennial herbaceous biomass species for the Piedmont;Parrish,1986
4. 1986 Final Report: Perennial species for optimum production of herbaceous biomass in the Piedmont;Parrish,1986
5. Perennial species for optimum production of herbaceous biomass in the Piedmont;Parrish,1988