Butlin, R. A., & Roberts, N. (1995). Ecological relations in historical times: Human impact and adaptation. Blackwell.
芝加哥风格引文Butlin, R. A., 与 Neil Roberts. Ecological Relations in Historical Times: Human Impact and Adaptation. Oxford: Blackwell, 1995.
MLA引文Butlin, R. A., 与 Neil Roberts. Ecological Relations in Historical Times: Human Impact and Adaptation. Blackwell, 1995.
警告：这些引文格式不一定是100％准确.