Goop, Inc. (2018). The sex issue: Everything you've always wanted to know about sexuality, seduction, and desire (First hardcover edition.). GOOP Press, Grand Central Life & Style.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Goop, Inc. The Sex Issue: Everything You've Always Wanted to Know About Sexuality, Seduction, and Desire. First hardcover edition. New York: GOOP Press, Grand Central Life & Style, 2018.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Goop, Inc. The Sex Issue: Everything You've Always Wanted to Know About Sexuality, Seduction, and Desire. First hardcover edition. GOOP Press, Grand Central Life & Style, 2018.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.