O'Bryan, C. L. (1977). Management improvement in the Armed Forces of the United States as adapted from civilian industry [microform]. Photoduplication Service. University of the Philippines Library.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)O'Bryan, Carey Law. Management Improvement in the Armed Forces of the United States as Adapted from Civilian Industry [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1977.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)O'Bryan, Carey Law. Management Improvement in the Armed Forces of the United States as Adapted from Civilian Industry [microform]. Photoduplication Service. University of the Philippines Library, 1977.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.