Bully GmbH Volkmar Klaus <Spraitbach>. (1984). Bully Information.
Cita Chicago (17th ed.)Bully GmbH Volkmar Klaus <Spraitbach>. Bully Information. Spraitbach, 1984.
Cita MLA (8th ed.)Bully GmbH Volkmar Klaus <Spraitbach>. Bully Information. 1984.
Atenció: Aquestes cites poden no estar 100% correctes.