(2002). World resources 2000-2001: People and ecosystems: the fraying web of life. World Resources Institute.
シカゴスタイル引用形World Resources 2000-2001: People and Ecosystems: The Fraying Web of Life. Washington: World Resources Institute, 2002.
MLA引用形式World Resources 2000-2001: People and Ecosystems: The Fraying Web of Life. World Resources Institute, 2002.
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