Earplug rankings based on the protector-attenuation rating (P-AR)
By: Jerry V. Tobias ; FAA Civil Aeromedical Institute.
Contributors: United States. Office of Aviation Medicine.; Civil Aeromedical Institute.
Series: FAA-AM -- 75-11.; FAA-AM (United States. Office of Aviation Medicine) -- 75-11.
Publisher: U.S. Dept. of Transportation, Federal Aviation Administration, Office of Aviation Medicine; for sale by the National Technical Information Service
Published: 1975
Place of publication: Washington; Springfield, Va
Language: eng
Number of pages: 59
Subjects: Ear -- Protection.
Notes: Cover title.

"October 1975."

Research conducted under tasks AM-B-74-PSY-51 and AM-D-75-PSY-55.

Bibliography: p. 59.

Also available online.