Cita APA (7th ed.)
Levy, J. (2013). Visual guide to options. John Wiley & Sons.
Cita Chicago (17th ed.)
Levy, Jared. Visual Guide to Options. Hoboken, N.J.: John Wiley & Sons, 2013.
Cita MLA (9th ed.)
Levy, Jared. Visual Guide to Options. John Wiley & Sons, 2013.
Atenció: Aquestes cites poden no estar 100% correctes.