Cita APA (7a ed.)

Erdmenger, C. (2003). Buying into the environment: Experiences, opportunities and potential for eco-procurement. Greenleaf Pub..

Cita Chicago Style (17a ed.)

Erdmenger, Christoph. Buying into the Environment: Experiences, Opportunities and Potential for Eco-procurement. Sheffield: Greenleaf Pub., 2003.

Cita MLA (8a ed.)

Erdmenger, Christoph. Buying into the Environment: Experiences, Opportunities and Potential for Eco-procurement. Greenleaf Pub., 2003.