Παραπομπή σε μορφή APA (7η εκδ.)

Cook, W. D., & Zhu, J. (2008). Data envelopment analysis: Modeling operational processes and measuring productivity. [s.n.].

Παραπομπή σε μορφή Chicago (17η εκδ.)

Cook, Wade D., και Joe Zhu. Data Envelopment Analysis: Modeling Operational Processes and Measuring Productivity. [Lexington, USA ]: [s.n.], 2008.

Παραπομπή σε μορφή MLA (8th εκδ.)

Cook, Wade D., και Joe Zhu. Data Envelopment Analysis: Modeling Operational Processes and Measuring Productivity. [s.n.], 2008.