Hackshaw, A. K. (2015). A concise guide to observational studies in healthcare. John Wiley & Sons Inc..
芝加哥风格引文Hackshaw, Allan K. A Concise Guide to Observational Studies in Healthcare. Chichester, West Sussex, United Kingdom: John Wiley & Sons Inc., 2015.
MLA引文Hackshaw, Allan K. A Concise Guide to Observational Studies in Healthcare. John Wiley & Sons Inc., 2015.
警告：这些引文格式不一定是100％准确.