Fletcher, R. H., Fletcher, S. W., & Fletcher, G. S. (2014). Clinical epidemiology: The essentials (5th ed.). Wolters Kluwer/Lippincott Williams & Wilkins Health.
芝加哥风格引文Fletcher, Robert H., Suzanne W. Fletcher, 与 Grant S. Fletcher. Clinical Epidemiology: The Essentials. 5th ed. Philadelphia: Wolters Kluwer/Lippincott Williams & Wilkins Health, 2014.
MLA引文Fletcher, Robert H., et al. Clinical Epidemiology: The Essentials. 5th ed. Wolters Kluwer/Lippincott Williams & Wilkins Health, 2014.
警告：这些引文格式不一定是100％准确.