APA引用形式

Tilley, C., Crawford, F., Clarkson, J., Pitts, N., & McCann, M. (2005). What's the evidence that NICE guidance has been implemented?: Analysis is subject to confounding. BMJ Publishing Group Ltd.

シカゴスタイル引用形

Tilley, Colin, Fay Crawford, Jan Clarkson, Nigel Pitts, , Mary McCann. What's the Evidence That NICE Guidance Has Been Implemented?: Analysis Is Subject to Confounding. BMJ Publishing Group Ltd, 2005.

MLA引用形式

Tilley, Colin, et al. What's the Evidence That NICE Guidance Has Been Implemented?: Analysis Is Subject to Confounding. BMJ Publishing Group Ltd, 2005.