Pilbeam, S. (2012). OCR Level 2 NVQ Certificate in Customer Service (QCF) Incorporating Level 2 Certificate in Customer Service Knowledge. Hodder Education.
Chicago-Zitierstil (17. Ausg.)Pilbeam, Sarah. OCR Level 2 NVQ Certificate in Customer Service (QCF) Incorporating Level 2 Certificate in Customer Service Knowledge. London: Hodder Education, 2012.
MLA-Zitierstil (9. Ausg.)Pilbeam, Sarah. OCR Level 2 NVQ Certificate in Customer Service (QCF) Incorporating Level 2 Certificate in Customer Service Knowledge. Hodder Education, 2012.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.