American Association of State Highway and Transportation Officials. (1994). AASHTO LRFD bridge design specifications. American Association of State Highway and Transportation Officials.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিAmerican Association of State Highway and Transportation Officials. AASHTO LRFD Bridge Design Specifications. Washington, D.C: American Association of State Highway and Transportation Officials, 1994.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিAmerican Association of State Highway and Transportation Officials. AASHTO LRFD Bridge Design Specifications. American Association of State Highway and Transportation Officials, 1994.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.