Cousineau, P. (1999). A world treasury of riddles. Conari Press.
Cita Chicago (17th ed.)Cousineau, Phil. A World Treasury of Riddles. York Beach, Maine: Conari Press, 1999.
Cita MLA (9th ed.)Cousineau, Phil. A World Treasury of Riddles. Conari Press, 1999.
Atenció: Aquestes cites poden no estar 100% correctes.