APA引文

United States Conference on Prestressed Concrete. Proceedings. [s.n.].

Chicago Style (17th ed.) Citation

United States Conference on Prestressed Concrete. Proceedings. [United States]: [s.n.].

MLA引文

United States Conference on Prestressed Concrete. Proceedings. [s.n.].

警告：這些引文格式不一定是100％准確.