Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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