Bach, R. (2011). Jonathan Livingston Seagull. Harper Collins.
Cita Chicago (17th ed.)Bach, Richard. Jonathan Livingston Seagull. New Delhi: Harper Collins, 2011.
Cita MLA (9th ed.)Bach, Richard. Jonathan Livingston Seagull. Harper Collins, 2011.
Atenció: Aquestes cites poden no estar 100% correctes.