Snell, C., & Callahan, T. (2009). Building green: A complete how-to guide to alternative building methods : earth plaster, straw bale, cordwood, cob, living roofs (2nd ed.). Lark Books.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Snell, Clarke, و Tim Callahan. Building Green: A Complete How-to Guide to Alternative Building Methods : Earth Plaster, Straw Bale, Cordwood, Cob, Living Roofs. 2nd ed. New York: Lark Books, 2009.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Snell, Clarke, و Tim Callahan. Building Green: A Complete How-to Guide to Alternative Building Methods : Earth Plaster, Straw Bale, Cordwood, Cob, Living Roofs. 2nd ed. Lark Books, 2009.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.