Portland Cement Association. (1993). Circular concrete tanks without prestressing. Portland Cement Association.
Chicagoスタイル(17版)引用形式Portland Cement Association. Circular Concrete Tanks Without Prestressing. Skokie, IL: Portland Cement Association, 1993.
MLA(8版)引用形式Portland Cement Association. Circular Concrete Tanks Without Prestressing. Portland Cement Association, 1993.
警告: この引用は必ずしも正確ではありません.