Tohutoro APA (7th ed.)
Johnston, R., Clark, G., & Shulver, M. Service Operations Management: Improving Service Delivery (4a edición.). Pearson.
Tohutoru Kātū Chicago (17th ed.)
Johnston, Robert, Graham Clark, me Michael Shulver. Service Operations Management: Improving Service Delivery. 4a edición. Harlow, Inglaterra: Pearson.
Tohutoro MLA (9th ed.)
Johnston, Robert, et al. Service Operations Management: Improving Service Delivery. 4a edición. Pearson.
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