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082 _a625.76 NAT
090 _c3484
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110 _aNATIONAL RESEARCH COUNCIL
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245 _aHIGHWAY MAINTENANCE STUDIES
260 _aWASHINGTON
_bNATIONAL ACADEMY OF SCIENCES
_c1957
300 _a17 P, PB
500 _aHIGHWAY MAINTENANCE STUDIES
526 _a0
_b0
_c0
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999 _c547586
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