Não informado. (1969). Highways & Traffic Engineering. IPC Building and Contract Journals.
Style de citation Chicago (17e éd.)Não informado. Highways & Traffic Engineering. London: IPC Building and Contract Journals, 1969.
Style de citation MLA (8e éd.)Não informado. Highways & Traffic Engineering. IPC Building and Contract Journals, 1969.
Attention : ces citations peuvent ne pas être correctes à 100%.