Cita APA (7th ed.)
Schwartz, R. E. (2009). Outer billiards on kites. Princeton University Press.
Cita Chicago (17th ed.)
Schwartz, Richard Evan. Outer Billiards on Kites. Princeton, NJ: Princeton University Press, 2009.
Cita MLA (9th ed.)
Schwartz, Richard Evan. Outer Billiards on Kites. Princeton University Press, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.