Johnston, R. (2018). Service Operations Management: Improving Service Delivery (4th.). Pearson.
Chicago Style aipamenaJohnston, Robert. Service Operations Management: Improving Service Delivery. 4th. Pearson, 2018.
MLA aipamenaJohnston, Robert. Service Operations Management: Improving Service Delivery. 4th. Pearson, 2018.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.