Lewis, D. L. (1991). Primer on transportation, productivity, and economic development. Transportation Research Board, National Research Council.
芝加哥风格引文Lewis, David L. Primer on Transportation, Productivity, and Economic Development. Washington, D.C: Transportation Research Board, National Research Council, 1991.
MLA引文Lewis, David L. Primer on Transportation, Productivity, and Economic Development. Transportation Research Board, National Research Council, 1991.
警告：这些引文格式不一定是100％准确.