Ohio Society of Surveyors and Civil Engineers. Annual report of the Ohio Society of Surveyors and Civil Engineers. Hann & Adair.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিOhio Society of Surveyors and Civil Engineers. Annual Report of the Ohio Society of Surveyors and Civil Engineers. Columbus: Hann & Adair.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিOhio Society of Surveyors and Civil Engineers. Annual Report of the Ohio Society of Surveyors and Civil Engineers. Hann & Adair.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.