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作者 Gatchell, Charles J.

题名 Machine driving of wooden and steel highway guardrail posts under adverse conditions / by Charles J. Gatchell and Edwin L. Lucas.

出版资料 Upper Darby, Pa : Northeastern Forest Experiment Station, 1971.

复本

馆藏地 索书号 处理状态
 IU 2nd Floor  SD11 .A4554493 no. 212    AVAILABLE
载体形态 18 p : illus ; 23 cm.
丛编 U.S.D.A. Forest Service research paper NE-212
United States. Northeastern Forest Experiment Station, Upper Darby, Pa. U.S.D.A. Forest Service research paper NE -212.
Notes Cover title.
主题 Roads -- Guard fences.
Pile drivers.
其它责任者 Lucas, Edwin L.