Purvis, M., & Grainger, A. (2004). Exploring sustainable development: Geographical perspectives. Earthscan.
芝加哥风格引文Purvis, Martin, 与 Alan Grainger. Exploring Sustainable Development: Geographical Perspectives. London ; Sterling, VA: Earthscan, 2004.
MLA引文Purvis, Martin, 与 Alan Grainger. Exploring Sustainable Development: Geographical Perspectives. Earthscan, 2004.
警告：这些引文格式不一定是100％准确.