knox,I Paul. (2013). small town sustainability: Economic social and environmental innovation. German National Library.
芝加哥风格引文knox,I Paul. Small Town Sustainability: Economic Social and Environmental Innovation. German National Library, 2013.
MLA引文knox,I Paul. Small Town Sustainability: Economic Social and Environmental Innovation. German National Library, 2013.
警告：这些引文格式不一定是100％准确.