Brockman John. (2008). What Is Your Dangerous Idea: Today's Leading Thinkers on the Unthinkable (1st.). Harper.
Chicago-referens (17:e uppl.)Brockman John. What Is Your Dangerous Idea: Today's Leading Thinkers on the Unthinkable. 1st. London: Harper, 2008.
MLA-referens (9:e uppl.)Brockman John. What Is Your Dangerous Idea: Today's Leading Thinkers on the Unthinkable. 1st. Harper, 2008.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.