Perrakis, P. S. (2007). Adventures of the Spirit: The Older Woman in the Works of Doris, Lessing, Margaret Atwood, and Other Contemporary Women Writers. Ohio State University Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Perrakis, Phyllis Sternberg. Adventures of the Spirit: The Older Woman in the Works of Doris, Lessing, Margaret Atwood, and Other Contemporary Women Writers. Columbus: Ohio State University Press, 2007.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Perrakis, Phyllis Sternberg. Adventures of the Spirit: The Older Woman in the Works of Doris, Lessing, Margaret Atwood, and Other Contemporary Women Writers. Ohio State University Press, 2007.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.