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| 082 |
_a551.307 _bNAT _cD |
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_aN.A.S - N.R.C _940295 |
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| 245 |
_aHighway research board bulletin 216 / _cN.R.C - N.A.S |
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| 260 |
_aWashington : _bHighway Research Board, _c1959. |
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| 300 | _a43 p. : | ||
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_aMCE _9379 |
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