APA (7th ed.) Citation

Armitage, P., Berry, G., & Matthews, J. N. S. (2002). Statistical methods in medical research (4th ed.). Blackwell Scientific Publications.

Chicago Style (17th ed.) Citation

Armitage, P., G. Berry, and J. N. S. Matthews. Statistical Methods in Medical Research. 4th ed. Oxford ; Boston: Blackwell Scientific Publications, 2002.

MLA (9th ed.) Citation

Armitage, P., et al. Statistical Methods in Medical Research. 4th ed. Blackwell Scientific Publications, 2002.