APA (7th ed.) Citation

Russell, D. A., Parsons, P. J., & Roberts, C. H. (1993). Colin Henderson Roberts. 1909-1990.

Chicago Style (17th ed.) Citation

Russell, D. A., Peter J. Parsons, and Colin H. Roberts. Colin Henderson Roberts. 1909-1990. 1993.

MLA (9th ed.) Citation

Russell, D. A., et al. Colin Henderson Roberts. 1909-1990. 1993.