Bono, E. D. (1997). How To Be More Interesting. Penguin Books.
Cita Chicago (17th ed.)Bono, Edward De. How To Be More Interesting. London: Penguin Books, 1997.
Cita MLA (9th ed.)Bono, Edward De. How To Be More Interesting. Penguin Books, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.