Newman, J. H. (1850). Lectures on certain difficulties felt by Anglicans in submitting to the Catholic Church. Burns & Lambert.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Newman, John Henry. Lectures on Certain Difficulties Felt by Anglicans in Submitting to the Catholic Church. London: Burns & Lambert, 1850.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Newman, John Henry. Lectures on Certain Difficulties Felt by Anglicans in Submitting to the Catholic Church. Burns & Lambert, 1850.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.