Hirsch, T. J., & Marquis, E. L. (1975). Crash test and evaluation of a precast concrete median barrier. Texas Transportation Institute, Texas A & M University.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHirsch, T. J., और E. L. Marquis. Crash Test and Evaluation of a Precast Concrete Median Barrier. College Station: Texas Transportation Institute, Texas A & M University, 1975.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHirsch, T. J., और E. L. Marquis. Crash Test and Evaluation of a Precast Concrete Median Barrier. Texas Transportation Institute, Texas A & M University, 1975.
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