APA (7th ed.) Citation

Smith, S. E., & Rawlins, M. D. (1973). Variability in human drug response. Butterworth.

Chicago Style (17th ed.) Citation

Smith, Stephen E., and Michael D. Rawlins. Variability in Human Drug Response. London: Butterworth, 1973.

MLA (9th ed.) Citation

Smith, Stephen E., and Michael D. Rawlins. Variability in Human Drug Response. Butterworth, 1973.