Coaching | Theorie & Praxis. Springer Fachmedien Wiesbaden.
Cita Chicago (17th ed.)Coaching | Theorie & Praxis. Springer Fachmedien Wiesbaden.
Cita MLA (9th ed.)Coaching | Theorie & Praxis. Springer Fachmedien Wiesbaden.
Atenció: Aquestes cites poden no estar 100% correctes.