Bhyam, W. C., & Cox, J. Zapp!: The lightning of empowerment: how to improve quality, productivity, and employee satisfaction (First edition.). Harmony Books.
Čikaški stil citiranja (17. izdanje)Bhyam, William C., i Jeff Cox. Zapp!: The Lightning of Empowerment: How to Improve Quality, Productivity, and Employee Satisfaction. First edition. New York: Harmony Books.
MLA način citiranja (9. izdanje)Bhyam, William C., i Jeff Cox. Zapp!: The Lightning of Empowerment: How to Improve Quality, Productivity, and Employee Satisfaction. First edition. Harmony Books.
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