Here are entered general works and those that deal with the presentation of Nō plays on the stage. The text of the Nō plays and works treating of them from a literary point of view are entered under Nō plays.
Here are entered general works on the reduction or elimination of noise. Works on noise in types of institutions and industries and generated by types of vehicles, machinery, equipment, etc., and efforts to reduce or eliminate it, are entered under the appropriate heading with the subdivision Noise. --subdivision Noise under subjects, e.g. Automobiles--Noise; Construction industry--Noise
