Calculations of day-night levels (Ldn) resulting from civil aircraft operations.
Contributors: Bolt, Beranek, and Newman, inc.
Series: EPA ; 550/9-77-450; EPA (Series) -- 550/9-77-450.
Publisher: Environmental Protection Agency, Office of Noise Abatement and Control, 1977.
Published: 1977
Place of publication: [Wsahington]
Language: eng
Number of pages: 370
Subjects: Airplanes -- Noise -- Handbooks, manuals, etc.; Aeronautics, Commercial -- Statistics -- Handbooks, manuals, etc.
Notes: Prepared by Bolt Beranek & Newman, Inc. under contract no. 68-01-3218.

Includes appendices and index.

Bibliography: p. 71.