Pendulum impact tests of wooden and steel highway guardrail posts

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070 0 ‡aA99.9 ‡bF7622Un no.311
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100 1 ‡aGatchell, Charles J.
245 1 0 ‡aPendulum impact tests of wooden and steel highway guardrail posts / ‡cby Charles J. Gatchell and Jarvis D. Michie.
260 ‡aUpper Darby, Pa. : ‡bForest Service, U.S. Dept. of Agriculture, Northeastern Forest Experiment Station, ‡c1974.
300 ‡a20 p. : ‡bill. ; ‡c27 cm.
490 0 ‡aUSDA Forest Service research paper NE ; ‡v311
538 ‡aMode of access: Internet.
650 0 ‡aRoads ‡xGuard fences ‡xTesting.
700 1 0 ‡aMichie, Jarvis Dale.
CID ‡a007416301
DAT 0 ‡a20020415165046.0 ‡b20141009010000.0
DAT 1 ‡a20141112162027.0 ‡b2025-01-01T18:41:50Z
DAT 2 ‡a2025-01-01T18:30:02Z
CAT ‡aSDR-UIUC ‡dUNKNOWN ‡lloader.pl-003-020
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