Não informado. (2003). Leadership and Management in Engineering. American Society of Civil Engineers.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Não informado. Leadership and Management in Engineering. Reston, Va: American Society of Civil Engineers, 2003.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Não informado. Leadership and Management in Engineering. American Society of Civil Engineers, 2003.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.