توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Barrett Derm. (1997). Paradox Process: Creative business solutions, where you least expect to find them. American Management Assciation.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Barrett Derm. Paradox Process: Creative Business Solutions, Where You Least Expect to Find Them. NewYork: American Management Assciation, 1997.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

Barrett Derm. Paradox Process: Creative Business Solutions, Where You Least Expect to Find Them. American Management Assciation, 1997.