Hepner, H. W., & Pettengill, F. B. (1971). Perceptive management and supervision: Social responsibilities and challenges / H. W. Hepner [and] Frederick B. Pettengill (2nd ed.). Prentice-Hall.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Hepner, Harry Walker, و Frederick B. Pettengill. Perceptive Management and Supervision: Social Responsibilities and Challenges / H. W. Hepner [and] Frederick B. Pettengill. 2nd ed. Englewood Cliffs, N. J: Prentice-Hall, 1971.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Hepner, Harry Walker, و Frederick B. Pettengill. Perceptive Management and Supervision: Social Responsibilities and Challenges / H. W. Hepner [and] Frederick B. Pettengill. 2nd ed. Prentice-Hall, 1971.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.