American Association of State Highway Officials\nNational Academies of Sciences, Engineering and Medicine (U.S.), Transportation Research Board. (1964). Report. Highway Research Board, Division of Engineering and Industrial Research.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিAmerican Association of State Highway Officials\nNational Academies of Sciences, Engineering and Medicine (U.S.), Transportation Research Board. Report. Washington: Highway Research Board, Division of Engineering and Industrial Research, 1964.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিAmerican Association of State Highway Officials\nNational Academies of Sciences, Engineering and Medicine (U.S.), Transportation Research Board. Report. Highway Research Board, Division of Engineering and Industrial Research, 1964.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.