Behrens, R. (1995). Welcome to the machine: The instrument, the technique, and the utopia in music / Roger Behrens. Issues in contemporary culture and aesthetics.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Behrens, Roger. "Welcome to the Machine: The Instrument, the Technique, and the Utopia in Music / Roger Behrens." Issues in Contemporary Culture and Aesthetics 1995.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Behrens, Roger. "Welcome to the Machine: The Instrument, the Technique, and the Utopia in Music / Roger Behrens." Issues in Contemporary Culture and Aesthetics, 1995.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.