APA

British Constructional Steelwork Association, Steel Construction Institute, . (19). Joints in simple construction. London: Steel Construction Institute.

Chicago

British Constructional Steelwork Association, Steel Construction Institute, . 19. Joints in simple construction. London: Steel Construction Institute.

Harvard

British Constructional Steelwork Association, Steel Construction Institute, . (19). Joints in simple construction. London: Steel Construction Institute.

MLA

British Constructional Steelwork Association, Steel Construction Institute, . Joints in simple construction. London: Steel Construction Institute. 19.