Tarr, J. A. (1972). Transportation innovation and changing spatial patterns: Pittsburgh, 1850-1910. Carnegie-Mellon University, Transportation Research Institute ; NTIS [distributor].
芝加哥风格引文Tarr, Joel A. Transportation Innovation and Changing Spatial Patterns: Pittsburgh, 1850-1910. Pittsburgh, Pa. : Springfield, Va.: Carnegie-Mellon University, Transportation Research Institute ; NTIS [distributor], 1972.
MLA引文Tarr, Joel A. Transportation Innovation and Changing Spatial Patterns: Pittsburgh, 1850-1910. Carnegie-Mellon University, Transportation Research Institute ; NTIS [distributor], 1972.
警告：这些引文格式不一定是100％准确.