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Guardrail encroachment monitor - GEM. Final report.

APA Citation

King, J. Derwin (James Derwin)., Cerwin, S. A. (1981). Guardrail encroachment monitor - GEM. Final report. .

King, J. Derwin (James Derwin), 1926-, and Stephen A Cerwin. Guardrail Encroachment Monitor - GEM. Final Report. , 1981.

Warning: These citations may not always be complete (especially for serials).