Gooding, P. H. T., & Witt, P. J. (1954). Proceedings of a symposium on concrete shell roof construction: 2-4 July 1952. London: Cement and Concrete Association.
Παραπομπή Chicago StyleGooding, P. H. T., and P. J. Witt. Proceedings of a Symposium On Concrete Shell Roof Construction: 2-4 July 1952. London: Cement and Concrete Association, 1954.
Παραπομπή MLAGooding, P. H. T., and P. J. Witt. Proceedings of a Symposium On Concrete Shell Roof Construction: 2-4 July 1952. London: Cement and Concrete Association, 1954.
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