Improving barrier insertion loss.
Contributors: United States. Mine Safety and Health Administration.
Series: IR -- 1117.; Informational report (United States. Mine Safety and Health Administration) -- 1117.
Publisher: U.S. Dept. of Labor, Mine Safety and Health Administration
Published: 1980
Place of publication: [Washington, D.C.?]
Language: eng
Number of pages: 17
Subjects: Mineral industries -- United States -- Noise control.; Noise barriers.; Mining engineering -- United States.
Notes: Includes bibliographical references.