Campbell, C. C. (2019). The heart of perfection: How the saints taught me to trade my dream of perfect for God's (First Howard Books hardcover edition.). Howard Books.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Campbell, Colleen Carroll. The Heart of Perfection: How the Saints Taught Me to Trade My Dream of Perfect for God's. First Howard Books hardcover edition. New York: Howard Books, 2019.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Campbell, Colleen Carroll. The Heart of Perfection: How the Saints Taught Me to Trade My Dream of Perfect for God's. First Howard Books hardcover edition. Howard Books, 2019.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.