1. Dept. of Transportation, F.A.A. Airworthiness Standards: Transport Càtegory Airplanes, Federal Aviation Regulations, Vol. III, Part 25, Transmittal 10 (May 1, 1972).
2. Dept. of Transportation, F.A.A. Flight Standard Service, Transport Category Airplanes. Notice 75-3. Smoke Emission from Compartment Interior Materials Federal Register, vol. 40, p. 6505, (Feb. 12, 1975).
3. Dept. of Transportation, F.A.A., Flight Standards Service, Notice 74-38, Compartment Interior Materials: Toxic Gas Emission. Federal Register, vol. 39, p. 45044 (Dec. 30, 1974).