Não informado. (1969). Highways & Traffic Engineering. IPC Building and Contract Journals.
Citação do estilo Chicago (17ª ed.)Não informado. Highways & Traffic Engineering. London: IPC Building and Contract Journals, 1969.
Citação MLA (8ª ed.)Não informado. Highways & Traffic Engineering. IPC Building and Contract Journals, 1969.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.