APA-Zitierstil (7. Ausg.)
ebrary, Inc, & Erdmenger, C. (2003). Buying into the environment: Experiences, opportunities and potential for eco-procurement. Greenleaf Pub..
Chicago-Zitierstil (17. Ausg.)
ebrary, Inc, und Christoph Erdmenger. Buying into the Environment: Experiences, Opportunities and Potential for Eco-procurement. Sheffield: Greenleaf Pub., 2003.
MLA-Zitierstil (9. Ausg.)
ebrary, Inc, und Christoph Erdmenger. Buying into the Environment: Experiences, Opportunities and Potential for Eco-procurement. Greenleaf Pub., 2003.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.