USAF Bioenvironmental Noise Data Handbook: Volume 61. HH-3E In-Flight Crew Noise
USAF Bioenvironmental Noise Data Handbook: Volume 60. UH-1N In-Flight Crew Noise
USAF Bioenvironmental Noise Data Handbook: Volume 55. AC-130A In-Flight Crew Noise
USAF Bioenvironmental Noise Data Handbook: Volume 54. C-123K In-Flight Crew Noise
USAF Bioenvironmental Noise Data Handbook: Volume 51. HH-53C In-Flight Crew Noise