Ohio Society of Surveyors and Civil Engineers. Annual report of the Ohio Society of Surveyors and Civil Engineers. Hann & Adair.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Ohio Society of Surveyors and Civil Engineers. Annual Report of the Ohio Society of Surveyors and Civil Engineers. Columbus: Hann & Adair.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Ohio Society of Surveyors and Civil Engineers. Annual Report of the Ohio Society of Surveyors and Civil Engineers. Hann & Adair.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.