(2015). Amazing Feats of Civil Engineering / by L.E. Carmichael ; content consultant, David A. Lange, Professor, Department of Civil & Environmental Engineering, University of Illinois at Urbana-Champaign.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Amazing Feats of Civil Engineering / by L.E. Carmichael ; Content Consultant, David A. Lange, Professor, Department of Civil & Environmental Engineering, University of Illinois at Urbana-Champaign. 2015.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Amazing Feats of Civil Engineering / by L.E. Carmichael ; Content Consultant, David A. Lange, Professor, Department of Civil & Environmental Engineering, University of Illinois at Urbana-Champaign. 2015.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.