APA (7th ed.) Citation

Hart, F., Henn, W., & Sontag, H. (1978). Multi-storey buildings in steel. Wiley.

Chicago Style (17th ed.) Citation

Hart, F., Walter Henn, and H. Sontag. Multi-storey Buildings in Steel. New York: Wiley, 1978.

MLA (9th ed.) Citation

Hart, F., et al. Multi-storey Buildings in Steel. Wiley, 1978.