APA-viite (7. p.)

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

Chicago-viite (17. p.)

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

MLA-viite (9. p.)

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