Cita APA (7th ed.)
Goodwin, J., & Harkison, J. The Smithsonian Experience. Smithsonian Institution.
Cita Chicago (17th ed.)
Goodwin, Joe, i Judy Harkison. The Smithsonian Experience. Washington, EUA: Smithsonian Institution.
Cita MLA (9th ed.)
Goodwin, Joe, i Judy Harkison. The Smithsonian Experience. Smithsonian Institution.
Atenció: Aquestes cites poden no estar 100% correctes.