(1915). The Victor book of the opera: Stories of one hundred and ten operas with seven hundred illustrations and descriptions of twelve hundred Victor Opera Records (3a. ed.). Victor Talking Machine.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)The Victor Book of the Opera: Stories of One Hundred and Ten Operas with Seven Hundred Illustrations and Descriptions of Twelve Hundred Victor Opera Records. 3a. ed. Camden: Victor Talking Machine, 1915.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)The Victor Book of the Opera: Stories of One Hundred and Ten Operas with Seven Hundred Illustrations and Descriptions of Twelve Hundred Victor Opera Records. 3a. ed. Victor Talking Machine, 1915.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.