Howard, N. (1999). Confrontation analysis: How to win operations other than war. Evidence Based Research, Inc..
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Howard, Nigel. Confrontation Analysis: How to Win Operations Other than War. [Vienna, VA: Evidence Based Research, Inc., 1999.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Howard, Nigel. Confrontation Analysis: How to Win Operations Other than War. Evidence Based Research, Inc., 1999.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.