American Concrete Institute. (1956). Building code requirements for reinforced concrete (ACI 318-56) Adopted as a standard of the American Concrete Institute at its 52nd annual convention, February 21, 1956, as reported by Committee 318. Ratified by letter ballot April 30, 1956. [s.n.].
Cytowanie według stylu Chicago (wyd. 17)American Concrete Institute. Building Code Requirements for Reinforced Concrete (ACI 318-56) Adopted as a Standard of the American Concrete Institute at Its 52nd Annual Convention, February 21, 1956, as Reported by Committee 318. Ratified by Letter Ballot April 30, 1956. Detroitn: [s.n.], 1956.
Cytowanie według stylu MLA (wyd. 9)American Concrete Institute. Building Code Requirements for Reinforced Concrete (ACI 318-56) Adopted as a Standard of the American Concrete Institute at Its 52nd Annual Convention, February 21, 1956, as Reported by Committee 318. Ratified by Letter Ballot April 30, 1956. [s.n.], 1956.