APA-Zitierstil (7. Ausg.)

Butler, D. L. (2004). Bottom-line call center management: Creating a culture of accountability and excellent customer service. Elsevier Butterworth-Heinemann.

Chicago-Zitierstil (17. Ausg.)

Butler, David L. Bottom-line Call Center Management: Creating a Culture of Accountability and Excellent Customer Service. Amsterdam: Elsevier Butterworth-Heinemann, 2004.

MLA-Zitierstil (9. Ausg.)

Butler, David L. Bottom-line Call Center Management: Creating a Culture of Accountability and Excellent Customer Service. Elsevier Butterworth-Heinemann, 2004.