APA (7th ed.) Zitazioa

Fisher, F. (2001). Concepts and strategies. UN-HABITAT.

Chicago Style (17th ed.) Zitazioa

Fisher, Fred. Concepts and Strategies. Nairobi: UN-HABITAT, 2001.

MLA (9th ed.) Zitazioa

Fisher, Fred. Concepts and Strategies. UN-HABITAT, 2001.