APA (7th ed.) Citation

Ryall, D. L., & Collins, I. F. (1967). Design and test of a series of annular aerofoils. Her Majesty's Stationery Office.

Chicago Style (17th ed.) Citation

Ryall, D. L., and I. F. Collins. Design and Test of a Series of Annular Aerofoils. London: Her Majesty's Stationery Office, 1967.

MLA (9th ed.) Citation

Ryall, D. L., and I. F. Collins. Design and Test of a Series of Annular Aerofoils. Her Majesty's Stationery Office, 1967.