APA (7th ed.) Zitazioa

Perry, G. (2007). Informality: Exit and exclusion. World Bank.

Chicago Style (17th ed.) Zitazioa

Perry, Guillermo. Informality: Exit and Exclusion. Washington, D.C.: World Bank, 2007.

MLA (9th ed.) Zitazioa

Perry, Guillermo. Informality: Exit and Exclusion. World Bank, 2007.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.