APA (7th ed.) Zitazioa

(1977). The Delphi Method: Techniques and applications. Addison-wesley.

Chicago Style (17th ed.) Zitazioa

The Delphi Method: Techniques and Applications. London: Addison-wesley, 1977.

MLA (9th ed.) Zitazioa

The Delphi Method: Techniques and Applications. Addison-wesley, 1977.