ebrary, Inc, & Parkin, J. (2012). Cycling and sustainability. Emerald.
芝加哥风格引文ebrary, Inc, 与 John Parkin. Cycling and Sustainability. Bingley, U.K.: Emerald, 2012.
MLA引文ebrary, Inc, 与 John Parkin. Cycling and Sustainability. Emerald, 2012.
警告：这些引文格式不一定是100％准确.