Kunewicz, T. (2019). Fred Schwartz: 10 October 1931-6 August 2016. Polin.
Cita Chicago (17th ed.)Kunewicz, Tomasz. "Fred Schwartz: 10 October 1931-6 August 2016." Polin 2019.
Cita MLA (8th ed.)Kunewicz, Tomasz. "Fred Schwartz: 10 October 1931-6 August 2016." Polin, 2019.
Atenció: Aquestes cites poden no estar 100% correctes.