Birkmeyer, J., Reames, B., McCulloch, P., Carr, A., Campbell, W., & Wennberg, J. (2013). Understanding of regional variation in the use of surgery.
芝加哥风格引文Birkmeyer, J., B. Reames, P. McCulloch, A. Carr, W. Campbell, 与 J. Wennberg. Understanding of Regional Variation in the Use of Surgery. 2013.
MLA引文Birkmeyer, J., et al. Understanding of Regional Variation in the Use of Surgery. 2013.
警告：这些引文格式不一定是100％准确.