British Library, Andrew, M., & Waldron, R. (1979). The poems of the Pearl manuscript: Pearl, Cleanness, Patience, Sir Gawain and the Green Knight. University of California Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)British Library, Malcolm Andrew, و Ronald Waldron. The Poems of the Pearl Manuscript: Pearl, Cleanness, Patience, Sir Gawain and the Green Knight. Berkeley: University of California Press, 1979.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)British Library, et al. The Poems of the Pearl Manuscript: Pearl, Cleanness, Patience, Sir Gawain and the Green Knight. University of California Press, 1979.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.