Swidler, E. The recurring dark ages : Ecological stress, climate changes, and system transformation: Book review.
シカゴスタイル引用形Swidler, Eva-Maria. The Recurring Dark Ages : Ecological Stress, Climate Changes, and System Transformation: Book Review.
MLA引用形式Swidler, Eva-Maria. The Recurring Dark Ages : Ecological Stress, Climate Changes, and System Transformation: Book Review.
警告: この引用は必ずしも正確ではありません.