Helmers, C., & Rogers, M. (2008). Innovation and the survival of new firms across British regions. University of Oxford.
芝加哥风格引文Helmers, C., 与 M. Rogers. Innovation and the Survival of New Firms Across British Regions. University of Oxford, 2008.
MLA引文Helmers, C., 与 M. Rogers. Innovation and the Survival of New Firms Across British Regions. University of Oxford, 2008.
警告：这些引文格式不一定是100％准确.