Analytic subject index to 2019

43.05.History;43.10.General;43.15.Standards;43.20.General linear acoustics;43.25.Nonlinear acoustics;43.28.Aeroacoustics and atmospheric sound;43.30.Underwater sound;43.35.Ultrasonics,quantum acoustics,and physical effects of sound;43.38.Transduction,acoustical devices for the generation and reproduction of sound;43.40.Structural acoustics and vibration;43.50.Noise:its effects and control;43.55.Architectural acoustics;43.58.Acoustical measurements and instrumentation