Campbell, H. E., & Corley, E. A. (2012). Urban environmental policy analysis. M.E. Sharpe.
芝加哥风格引文Campbell, Heather E., 与 Elizabeth A. Corley. Urban Environmental Policy Analysis. Armonk, N.Y.: M.E. Sharpe, 2012.
MLA引文Campbell, Heather E., 与 Elizabeth A. Corley. Urban Environmental Policy Analysis. M.E. Sharpe, 2012.
警告：这些引文格式不一定是100％准确.