MLA
. "U." Dictionary of Information Science and Technology, edited by Mehdi Khosrow-Pour, D.B.A., IGI Global, 2007, pp. 703-715. https://doi.org/10.4018/978-1-59904-385-2.ch021
APA
. (2007). U. In M. Khosrow-Pour, D.B.A. (Eds.), Dictionary of Information Science and Technology (pp. 703-715). IGI Global. https://doi.org/10.4018/978-1-59904-385-2.ch021
Chicago
. "U." In Dictionary of Information Science and Technology. edited by Khosrow-Pour, D.B.A., Mehdi, 703-715. Hershey, PA: IGI Global, 2007. https://doi.org/10.4018/978-1-59904-385-2.ch021
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