TY - BOOK AU - Kryter, K. D. TI - POSSIBLE MODIFICATIONS TO THE CALCULATION OF PERCEIVED NOISINESS [NASA CR-1636] U1 - NASA PY - 1970/// CY - Washington, D.C. PB - NASA KW - Aircraft noise KW - Subjective Noise level N1 - Bound With NASA CR-1631-40 (Bound with Acc. no. 101540) ER -