APA (7. basım) Alıntı

The Economist Intelligence Unit. (1999). Best practices: Environment. Univerties Press.

Chicago Style (17. basım) Atıf

The Economist Intelligence Unit. Best Practices: Environment. India: Univerties Press, 1999.

MLA (8th ed.) Atıf

The Economist Intelligence Unit. Best Practices: Environment. Univerties Press, 1999.