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1
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2Published 1967“...Division of Highways,...”
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3by Spellman, D. L.“...California Division of Highways, Materials and Research Department,...”
Published 1973
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4Published 1950“...Division of Highways, Department of Public Works, State of California,...”
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5Published 1955“...State of California, Dept. of Public Works, Division of Highways,...”
Book