ebrary, Inc, & Hillary, R. (2000). Small and medium-sized enterprises and the environment: Business imperatives. Greenleaf Pub..
芝加哥风格引文ebrary, Inc, 与 Ruth Hillary. Small and Medium-sized Enterprises and the Environment: Business Imperatives. Sheffield: Greenleaf Pub., 2000.
MLA引文ebrary, Inc, 与 Ruth Hillary. Small and Medium-sized Enterprises and the Environment: Business Imperatives. Greenleaf Pub., 2000.
警告：这些引文格式不一定是100％准确.