توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)
Chambers, L. (2002). Credibility marketing: Build your business by becoming a recognized expert (without investing a lot of time or money). Dearborn Trade Publishing.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)
Chambers, Larry. Credibility Marketing: Build Your Business by Becoming a Recognized Expert (without Investing a Lot of Time or Money). Chicago, IL: Dearborn Trade Publishing, 2002.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)
Chambers, Larry. Credibility Marketing: Build Your Business by Becoming a Recognized Expert (without Investing a Lot of Time or Money). Dearborn Trade Publishing, 2002.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.