APA (7th ed.) Citation

Steel Construction Institute (Great Britain), Dowling, P. J., Knowles, P. R., & Owens, G. W. (1988). Structural steel design. Butterworths.

Chicago Style (17th ed.) Citation

Steel Construction Institute (Great Britain), P. J. Dowling, P. R. Knowles, and Graham W. Owens. Structural Steel Design. London: Butterworths, 1988.

MLA (9th ed.) Citation

Steel Construction Institute (Great Britain), et al. Structural Steel Design. Butterworths, 1988.