APA (7th ed.) Citation

Tobias, J. V., & Irons, F. M. (1973). Ear-protector ratings. Office of Aviation Medicine, Federal Aviation Administration.

Chicago Style (17th ed.) Citation

Tobias, Jerry V., and F. Michael Irons. Ear-protector Ratings. Washington, D.C.: Office of Aviation Medicine, Federal Aviation Administration, 1973.

MLA (9th ed.) Citation

Tobias, Jerry V., and F. Michael Irons. Ear-protector Ratings. Office of Aviation Medicine, Federal Aviation Administration, 1973.