Tohutoro APA (7th ed.)
Hackshaw, A. K. (2015). A concise guide to observational studies in healthcare. John Wiley & Sons Inc..
Tohutoru Kātū Chicago (17th ed.)
Hackshaw, Allan K. A Concise Guide to Observational Studies in Healthcare. Chichester, West Sussex, United Kingdom: John Wiley & Sons Inc., 2015.
Tohutoro MLA (9th ed.)
Hackshaw, Allan K. A Concise Guide to Observational Studies in Healthcare. John Wiley & Sons Inc., 2015.
Kia tūpato: Kāore pea ēnei kupu hautoa i te ōrite pū 100%.