Johnston, R. (2008). Service operations management: Improving service delivery (2nd ed.). Pearson.
Παραπομπή Chicago StyleJohnston, Robert. Service Operations Management: Improving Service Delivery. 2nd ed. New Delhi: Pearson, 2008.
Παραπομπή MLAJohnston, Robert. Service Operations Management: Improving Service Delivery. 2nd ed. Pearson, 2008.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.