Kulkarni, R., & Van Til, C. J. (1984). Manual for the selection of optimal maintenance levels of service. Transportation Research Board, National Research Council.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रKulkarni, R., और Cecil J. Van Til. Manual for the Selection of Optimal Maintenance Levels of Service. Washington, D.C: Transportation Research Board, National Research Council, 1984.
एमएलए (9वां संस्करण) प्रशस्ति पत्रKulkarni, R., और Cecil J. Van Til. Manual for the Selection of Optimal Maintenance Levels of Service. Transportation Research Board, National Research Council, 1984.
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