Allegheny County
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Schoedel, Richard M. / Marburger, Donald (2009): Analysis of the Floating Rail System for the Port Authority of Allegheny County. In: Practice Periodical on Structural Design and Construction, v. 14, n. 3 (August 2009), pp. 130-134.
https://doi.org/10.1061/(asce)1084-0680(2009)14:3(130)
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The Construction Of Concrete Arches In Allegheny County, Pennsylvania. In: Journal of the American Concrete Institute (ACI Journal Proceedings), v. 28, n. 6 ( 1932).
https://doi.org/10.14359/8261
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The Design Of Concrete Arches In Allegheny County, Pennsylvania. In: Journal of the American Concrete Institute (ACI Journal Proceedings), v. 28, n. 6 ( 1932).
https://doi.org/10.14359/8260