Wilby, C. B., & Naqvi, M. M. (1973). Reinforced concrete conoidal shell roofs: Flexural theory design tables. Cement and Concrete Association.
Cita Chicago (17th ed.)Wilby, C. B., i Mohammad Matin Naqvi. Reinforced Concrete Conoidal Shell Roofs: Flexural Theory Design Tables. London: Cement and Concrete Association, 1973.
Cita MLA (8th ed.)Wilby, C. B., i Mohammad Matin Naqvi. Reinforced Concrete Conoidal Shell Roofs: Flexural Theory Design Tables. Cement and Concrete Association, 1973.
Atenció: Aquestes cites poden no estar 100% correctes.