APA (7th ed.) Citation

Hart, F., Henn, W., Sontag, H., & Godfrey, G. B. (1985). Multi-storey buildings in steel (2nd ed.). Collins.

Chicago Style (17th ed.) Citation

Hart, F., W. Henn, H. Sontag, and G. Bernard Godfrey. Multi-storey Buildings in Steel. 2nd ed. London: Collins, 1985.

MLA (9th ed.) Citation

Hart, F., et al. Multi-storey Buildings in Steel. 2nd ed. Collins, 1985.