higway, A. A. o. s. (1980). Interin Specifications Bridges 1980. AASHTO.
Chicago Style (17th ed.) Citationhigway, AMERICAN Assocition of state. Interin Specifications Bridges 1980. AASHTO, 1980.
MLA引文higway, AMERICAN Assocition of state. Interin Specifications Bridges 1980. AASHTO, 1980.
警告:這些引文格式不一定是100%准確.