Cita APA (7th ed.)
Fisher, F. (2001). Concepts and strategies. UN-HABITAT.
Cita Chicago (17th ed.)
Fisher, Fred. Concepts and Strategies. Nairobi: UN-HABITAT, 2001.
Cita MLA (9th ed.)
Fisher, Fred. Concepts and Strategies. UN-HABITAT, 2001.
Atenció: Aquestes cites poden no estar 100% correctes.