APA (7th ed.) Citation

Clark, T. J. H., & Godfrey, S. (1983). Asthma (2nd ed.). Chapman and Hall.

Chicago Style (17th ed.) Citation

Clark, T. J. H., and S. Godfrey. Asthma. 2nd ed. London: Chapman and Hall, 1983.

MLA (8th ed.) Citation

Clark, T. J. H., and S. Godfrey. Asthma. 2nd ed. Chapman and Hall, 1983.