Helmer, É. (2025). The Reciprocity at the Center: Economics and the Anthropocene from Xenophon's Economics.
استشهاد بنمط شيكاغوHelmer, Étienne. The Reciprocity At the Center: Economics and the Anthropocene From Xenophon's Economics. 2025.
MLA استشهادHelmer, Étienne. The Reciprocity At the Center: Economics and the Anthropocene From Xenophon's Economics. 2025.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.