Cita APA

 Lewis, H. (2007).  Are the rich necessary?: Great economic arguments and how they reflect our personal values.  Axios Press.

Citación estilo Chicago

 Lewis, Hunter.  Are the Rich Necessary?: Great Economic Arguments and How They Reflect Our Personal Values.  Axios Press, 2007.

Cita MLA

 Lewis, Hunter.  Are the Rich Necessary?: Great Economic Arguments and How They Reflect Our Personal Values.  Axios Press, 2007.