Bradley, N. L., Leopold, A. C., Ross, J., & Huffaker, W. (1999). Phenological changes reflect climate change in Wisconsin. The National Academy of Sciences.
シカゴスタイル引用形Bradley, Nina L., A. Carl Leopold, John Ross, , Wellington Huffaker. Phenological Changes Reflect Climate Change in Wisconsin. The National Academy of Sciences, 1999.
MLA引用形式Bradley, Nina L., A. Carl Leopold, John Ross, , Wellington Huffaker. Phenological Changes Reflect Climate Change in Wisconsin. The National Academy of Sciences, 1999.
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