1. Hubbard, H. H., editor,Aero-acoustics of Flight Vehicles: Theory and Practice: Volume 1: Noise Sources, NASA Reference Publication 1258, Vol 1, WRDC Technical Report 90-3052.
2. Hubbard, H. H., editor,Aero-acoustics of Flight Vehicles: Theory and Practice: Volume 2: Noise Control, NASA Reference Publication 1258, Vol 2, WRDC Technical Report 90-3052.
3. A Large Hemi-anechoic Enclosure for Community-Compatible Aeroacoustic Testing of Aircraft Propulsion Systems