Escher, W. (1989). Characteristic Jazz Studies: For Trumpet in B or other B Instruments - für Trompete in B oder andere B-Instrumente / Wolf Escher. Schott.
Cita Chicago (17th ed.)Escher, Wolf. Characteristic Jazz Studies: For Trumpet in B or Other B Instruments - Für Trompete in B Oder Andere B-Instrumente / Wolf Escher. Mainz: Schott, 1989.
Cita MLA (8th ed.)Escher, Wolf. Characteristic Jazz Studies: For Trumpet in B or Other B Instruments - Für Trompete in B Oder Andere B-Instrumente / Wolf Escher. Schott, 1989.
Atenció: Aquestes cites poden no estar 100% correctes.