Cita APA (7th ed.)
Behrendt, S. (2003). Eco-service development: Reinventing supply and demand in the European Union. Greenleaf Pub..
Cita Chicago (17th ed.)
Behrendt, Siegfried. Eco-service Development: Reinventing Supply and Demand in the European Union. Sheffield: Greenleaf Pub., 2003.
Cita MLA (9th ed.)
Behrendt, Siegfried. Eco-service Development: Reinventing Supply and Demand in the European Union. Greenleaf Pub., 2003.
Atenció: Aquestes cites poden no estar 100% correctes.