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MLA Citation
Unknown. Evaluation research : an introduction to principles, methods, and practice. London Thousand Oaks, Calif : SAGE, 1999. http://access.bl.uk/ark:/81055/vdc_100025505735.0x000001
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Unknown. Evaluation research : an introduction to principles, methods, and practice. London Thousand Oaks, Calif : SAGE, 1999. http://access.bl.uk/ark:/81055/vdc_100025505735.0x000001