Duffy, A. C. (2013). Preserving with Pomona's pectin: The revolutionary low-sugar, high-flavor method for crafting and canning jams, jellies, conserves, and more. Fair Winds Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Duffy, Allison Carroll. Preserving with Pomona's Pectin: The Revolutionary Low-sugar, High-flavor Method for Crafting and Canning Jams, Jellies, Conserves, and More. Beverly, MA: Fair Winds Press, 2013.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Duffy, Allison Carroll. Preserving with Pomona's Pectin: The Revolutionary Low-sugar, High-flavor Method for Crafting and Canning Jams, Jellies, Conserves, and More. Fair Winds Press, 2013.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.