439, 1. A. C. I. A. C. (1977). Steel reinforcement properties and availability. Detroit, Mich. : ACI.
Cita Chicago Style (17a ed.)439, 11128 American Concrete Institute. ACI Committee. Steel Reinforcement Properties and Availability. Detroit, Mich. : ACI, 1977.
Cita MLA (9a ed.)439, 11128 American Concrete Institute. ACI Committee. Steel Reinforcement Properties and Availability. Detroit, Mich. : ACI, 1977.
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