Gregory, N., & O'Reilly, C. L. (1973). Low-speed aerodynamic characteristics of NACA 0012 aerofoil section, including the effects of upper-surface roughness simulating hoar frost. Her Majesty's Stationery Office.
Chicago Style (17th ed.) CitationGregory, N., and C. L. O'Reilly. Low-speed Aerodynamic Characteristics of NACA 0012 Aerofoil Section, Including the Effects of Upper-surface Roughness Simulating Hoar Frost. London: Her Majesty's Stationery Office, 1973.
MLA (9th ed.) CitationGregory, N., and C. L. O'Reilly. Low-speed Aerodynamic Characteristics of NACA 0012 Aerofoil Section, Including the Effects of Upper-surface Roughness Simulating Hoar Frost. Her Majesty's Stationery Office, 1973.
Warning: These citations may not always be 100% accurate.