Drucker, P. (2000). Different rainbows. London: Central Books.
Cita Chicago (17th ed.)Drucker, Peter. Different Rainbows. London: Central Books, 2000.
Cita MLA (8th ed.)Drucker, Peter. Different Rainbows. London: Central Books, 2000.
Atenció: Aquestes cites poden no estar 100% correctes.