organization for economic cooperation. (1979). .area traffic control systems: A report;preparedborganization for economic coopertion and development.road r.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিorganization for economic cooperation. .area Traffic Control Systems: A Report;preparedborganization for Economic Coopertion and Development.road R. 1st ed. | .Mosul, 1979.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিorganization for economic cooperation. .area Traffic Control Systems: A Report;preparedborganization for Economic Coopertion and Development.road R. 1979.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.