Não informado. (1934). Highways, Bridges and Engineering Works. IPC Building and Contract Journals.
Citação do estilo Chicago (17ª ed.)Não informado. Highways, Bridges and Engineering Works. London: IPC Building and Contract Journals, 1934.
Citação MLA (8ª ed.)Não informado. Highways, Bridges and Engineering Works. IPC Building and Contract Journals, 1934.
Atenció: Aquestes cites poden no estar 100% correctes.