Bach, R. (1973). Jonathan Livingston Seagull: A story. Avon Books.
Cita Chicago Style (17a ed.)Bach, Richard. Jonathan Livingston Seagull: A Story. New York, Estados Unidos: Avon Books, 1973.
Cita MLA (9a ed.)Bach, Richard. Jonathan Livingston Seagull: A Story. Avon Books, 1973.
警告：这些引文格式不一定是100％准确.