APA-viite

Vézelay Group. (1991). Global risks at stake from thought to action. Newsletter From Vézelay.

Chicago-tyylinen lähdeviittaus

Vézelay Group. Global Risks At Stake From Thought to Action. Newsletter From Vézelay, 1991.

MLA-viite

Vézelay Group. Global Risks At Stake From Thought to Action. Newsletter From Vézelay, 1991.

Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.