ebrary, Inc, & Brink, P. t. (2002). Voluntary environmental agreements: Process, practice and future use. Greenleaf Pub..
芝加哥风格引文ebrary, Inc, 与 Patrick ten Brink. Voluntary Environmental Agreements: Process, Practice and Future Use. Sheffield, South Yorkshire, England: Greenleaf Pub., 2002.
MLA引文ebrary, Inc, 与 Patrick ten Brink. Voluntary Environmental Agreements: Process, Practice and Future Use. Greenleaf Pub., 2002.
警告：这些引文格式不一定是100％准确.