R. Dixon Speas Associates & General Aviation Manufacturers' Association. (1970). The magnitude and economic impact of general aviation, 1968-1980: A report prepared for the General Aviation Manufacturers' Association (GAMA). Aero House.
Chicago Style (17th ed.) CitationR. Dixon Speas Associates and General Aviation Manufacturers' Association. The Magnitude and Economic Impact of General Aviation, 1968-1980: A Report Prepared for the General Aviation Manufacturers' Association (GAMA). Manhasset, N.Y.: Aero House, 1970.
MLA (9th ed.) CitationR. Dixon Speas Associates and General Aviation Manufacturers' Association. The Magnitude and Economic Impact of General Aviation, 1968-1980: A Report Prepared for the General Aviation Manufacturers' Association (GAMA). Aero House, 1970.