Cita APA (7th ed.)
Sanjek, R. (2009). Gray Panthers. University of Pennyslvania Press.
Cita Chicago (17th ed.)
Sanjek, Roger. Gray Panthers. Philadelphia: University of Pennyslvania Press, 2009.
Cita MLA (9th ed.)
Sanjek, Roger. Gray Panthers. University of Pennyslvania Press, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.