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Blackberries of New England -- genetic status of the plants
A. K. Peitersen · Vermont Agricultural Experiment Station
34 sayfa · 1921
Blackberries / Varieties / Genetics
Blackberries of New England - their classification
Ezra Brainerd, A. K. Peitersen · Vermont Agricultural Experiment Station
84 sayfa · 1920
Blackberries / Nomenclature / Varieties