Não informado. (1969). Highways & Traffic Engineering. IPC Building and Contract Journals.
Chicagoスタイル(17版)引用形式Não informado. Highways & Traffic Engineering. London: IPC Building and Contract Journals, 1969.
MLA(8版)引用形式Não informado. Highways & Traffic Engineering. IPC Building and Contract Journals, 1969.
警告: この引用は必ずしも正確ではありません.