(1976). Beuys Gerz Ruthenbeck. Commissioner of the Federal.
Cita Chicago (17th ed.)Beuys Gerz Ruthenbeck. Commissioner of the Federal, 1976.
Cita MLA (9th ed.)Beuys Gerz Ruthenbeck. Commissioner of the Federal, 1976.
Atenció: Aquestes cites poden no estar 100% correctes.