Machine driving of wooden and steel highway guardrail posts under adverse conditions,
by Charles J. Gatchell and Edwin L. Lucas.
APA Citation
Gatchell, C. J., Lucas, E. L.. (1971). Machine driving of wooden and steel highway guardrail posts under adverse conditions. Upper Darby, Pa.: Northeastern Forest Experiment Station.
MLA Citation
Gatchell, Charles J, and Edwin L. Lucas. Machine Driving of Wooden And Steel Highway Guardrail Posts Under Adverse Conditions. Upper Darby, Pa.: Northeastern Forest Experiment Station, 1971.
Warning: These citations may not always be complete (especially for serials).