"This 2007 revision ... is based on information gleaned from recent highway transportation literature on maintenance, and field visits and interviews conducted by Kenneth A. Brewer as the principal author under National Cooperative Highway Research Program (NCHRP) Project SP20-07, Task 170" -- Pref. Supersedes the 1999 edition of this title. Includes bibliographical references and index. "Code: MM-4" -- P. [4] of cover.
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