Aberbach, A. D. (1984). The ideas of Richard Wagner: An examination and analysis of his major aesthetic, political, economic, social, and religious thoughts. University Press of America.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Aberbach, Alan David. The Ideas of Richard Wagner: An Examination and Analysis of His Major Aesthetic, Political, Economic, Social, and Religious Thoughts. Lanham, MD: University Press of America, 1984.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Aberbach, Alan David. The Ideas of Richard Wagner: An Examination and Analysis of His Major Aesthetic, Political, Economic, Social, and Religious Thoughts. University Press of America, 1984.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.