Elger, D. (2000). Ludger Gerdes. Schäfer.
Cita Chicago (17th ed.)Elger, Dietmar. Ludger Gerdes. Hannover: Schäfer, 2000.
Cita MLA (8th ed.)Elger, Dietmar. Ludger Gerdes. Schäfer, 2000.
Atenció: Aquestes cites poden no estar 100% correctes.
Elger, D. (2000). Ludger Gerdes. Schäfer.
Cita Chicago (17th ed.)Elger, Dietmar. Ludger Gerdes. Hannover: Schäfer, 2000.
Cita MLA (8th ed.)Elger, Dietmar. Ludger Gerdes. Schäfer, 2000.