توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Harr, D. J. (1991). Private sector financial performance measures and their: Applicability to government operations. National Association of Accountants.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Harr, David J. Private Sector Financial Performance Measures and Their: Applicability to Government Operations. Montvale, N.J: National Association of Accountants, 1991.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

Harr, David J. Private Sector Financial Performance Measures and Their: Applicability to Government Operations. National Association of Accountants, 1991.