Vézelay Group. (1991). Global risks at stake from thought to action. Newsletter From Vézelay.
Trích dẫn kiểu ChicagoVézelay Group. Global Risks At Stake From Thought to Action. Newsletter From Vézelay, 1991.
Trích dẫn MLAVézelay Group. Global Risks At Stake From Thought to Action. Newsletter From Vézelay, 1991.
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