Williams, W. (2020). The language of butterflies: How thieves, hoarders, scientists, and other obsessives unlocked the secrets of the world's favorite insect (First Simon & Schuster hardcover edition.). Simon & Schuster.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Williams, Wendy. The Language of Butterflies: How Thieves, Hoarders, Scientists, and Other Obsessives Unlocked the Secrets of the World's Favorite Insect. First Simon & Schuster hardcover edition. New York: Simon & Schuster, 2020.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Williams, Wendy. The Language of Butterflies: How Thieves, Hoarders, Scientists, and Other Obsessives Unlocked the Secrets of the World's Favorite Insect. First Simon & Schuster hardcover edition. Simon & Schuster, 2020.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.