Ahlert, B. (1994). The Very Best for Flute and Guitar (Two versions: Duet for flute & guitar - Guitar duet.). Peer.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Ahlert, Bernd. The Very Best for Flute and Guitar. Two versions: Duet for flute & guitar - Guitar duet. Hamburg: Peer, 1994.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Ahlert, Bernd. The Very Best for Flute and Guitar. Two versions: Duet for flute & guitar - Guitar duet. Peer, 1994.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.