Swidler, E. The recurring dark ages : Ecological stress, climate changes, and system transformation: Book review.
استشهاد بنمط شيكاغوSwidler, Eva-Maria. The Recurring Dark Ages : Ecological Stress, Climate Changes, and System Transformation: Book Review.
MLA استشهادSwidler, Eva-Maria. The Recurring Dark Ages : Ecological Stress, Climate Changes, and System Transformation: Book Review.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.