APA
Gray C. S., Kent L. E. & Mitchell W. A. (1959). Steel designer's manual. London: Crosby Lockwood.
Chicago
Gray Charles S, Kent Lewis E and Mitchell W A. 1959. Steel designer's manual. London: Crosby Lockwood.
Harvard
Gray C. S., Kent L. E. and Mitchell W. A. (1959). Steel designer's manual. London: Crosby Lockwood.
MLA
Gray Charles S, Kent Lewis E and Mitchell W A. Steel designer's manual. London: Crosby Lockwood. 1959.