APA (7th ed.) Zitazioa

Schellong, A. (2008). Citizen relationship management: A study of CRM in government. Lang.

Chicago Style (17th ed.) Zitazioa

Schellong, Alexander. Citizen Relationship Management: A Study of CRM in Government. Frankfurt am Main: Lang, 2008.

MLA (9th ed.) Zitazioa

Schellong, Alexander. Citizen Relationship Management: A Study of CRM in Government. Lang, 2008.