Matlins, A. L., & Bonanno, A. C. Jewelry & gems, the buying guide: How to buy diamonds, pearls, colored gemstones, gold & jewelry with confidence and knowledge. GemStone Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Matlins, Antoinette Leonard, و Antonio C. Bonanno. Jewelry & Gems, the Buying Guide: How to Buy Diamonds, Pearls, Colored Gemstones, Gold & Jewelry with Confidence and Knowledge. Woodstock, Vt.: GemStone Press.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Matlins, Antoinette Leonard, و Antonio C. Bonanno. Jewelry & Gems, the Buying Guide: How to Buy Diamonds, Pearls, Colored Gemstones, Gold & Jewelry with Confidence and Knowledge. GemStone Press.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.