Truck noise XI. Evaluation and reduction of heavy-duty truck noise. Final report.

Transportation Department, Office of Noise Abatement, Washington, D.C.

Corporation annual reports to shareholders.

2nd ser. 1951-1970 v.1 Ac-Ac is oversize and is on the bottom shelf of locator 168. 2nd ser. 1951-1970 suppl. is located on top shelf of locator 170.