Barber, D. (1821). Catholic worship and piety: Explained and recommended, in sundry letters, to a very near friend, and others. E. De Krafft.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Barber, Daniel. Catholic Worship and Piety: Explained and Recommended, in Sundry Letters, to a Very Near Friend, and Others. Washington, D.C.: E. De Krafft, 1821.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Barber, Daniel. Catholic Worship and Piety: Explained and Recommended, in Sundry Letters, to a Very Near Friend, and Others. E. De Krafft, 1821.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.