Cover image for Calculations of day-night levels (Ldn) resulting from civil aircraft operations.
Title:
Calculations of day-night levels (Ldn) resulting from civil aircraft operations.
Author:
United States. Office of Noise Abatement and Control.
Publication Information:
[Wsahington] : Environmental Protection Agency, Office of Noise Abatement and Control, 1977..
Physical Description:
vii, 370 pages : illustrations, graphs ; 28 cm.
General Note:
Prepared by Bolt Beranek & Newman, Inc. under contract no. 68-01-3218.

Includes appendices and index.
Language:
English
Added Corporate Author:
Format :
Book