Tower, G. B. N. (1874). Instructions on modern American bridge building: With practical applications and examples, estimates of quantities, and valuable tables. A. Williams.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Tower, George Bates Nichols. Instructions on Modern American Bridge Building: With Practical Applications and Examples, Estimates of Quantities, and Valuable Tables. Boston: A. Williams, 1874.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Tower, George Bates Nichols. Instructions on Modern American Bridge Building: With Practical Applications and Examples, Estimates of Quantities, and Valuable Tables. A. Williams, 1874.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.