Clementi, M. (1973). Gradus ad Parnassum: 29 selected studies, with scales in thirds in all major and minor keys. C. Hansen Educational Music and Books.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Clementi, Muzio. Gradus Ad Parnassum: 29 Selected Studies, with Scales in Thirds in All Major and Minor Keys. [New York: C. Hansen Educational Music and Books, 1973.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Clementi, Muzio. Gradus Ad Parnassum: 29 Selected Studies, with Scales in Thirds in All Major and Minor Keys. C. Hansen Educational Music and Books, 1973.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.