National Association of Watch and Clock Collectors. Mart of the National Association of Watch and Clock Collectors. National Association of Watch and Clock Collectors.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)National Association of Watch and Clock Collectors. Mart of the National Association of Watch and Clock Collectors. Glen Falls, N.Y.: National Association of Watch and Clock Collectors.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)National Association of Watch and Clock Collectors. Mart of the National Association of Watch and Clock Collectors. National Association of Watch and Clock Collectors.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.