Duke University. Program in Science, Technology and Human Values, National Science Foundation (U.S.), Dill, K., Wells, S., & Vesilind, P. A. (1999). Professional ethics and engineering. Duke University, Program in Science, Technology and Human Values.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Duke University. Program in Science, Technology and Human Values, National Science Foundation (U.S.), Kevin Dill, Scott Wells, و P. Aarne Vesilind. Professional Ethics and Engineering. Durham, NC: Duke University, Program in Science, Technology and Human Values, 1999.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Duke University. Program in Science, Technology and Human Values, et al. Professional Ethics and Engineering. Duke University, Program in Science, Technology and Human Values, 1999.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.