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  1. 1
    by Ulberg, Cyrus G.
    Published 1990
    “...HE 5623 .U36...”
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    Issues in the shift from regional to local provision of bus service /
  2. 2
    by Levinson, Herbert S.
    Published 1991
    “...HE 5623 .L665...”
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    Supervision strategies for improved reliability of bus routes /

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