Não informado. (1966). Summary of progress. National Cooperative Highway Research Program.
Chicagoスタイル(17版)引用形式Não informado. Summary of Progress. Washington: National Cooperative Highway Research Program, 1966.
MLA(8版)引用形式Não informado. Summary of Progress. National Cooperative Highway Research Program, 1966.
警告: この引用は必ずしも正確ではありません.