Pawson, R., & Tilley, N. (1994). What Works in Evalutation Research? The British journal of criminology, 34(3), 291-306.
Cita Chicago Style (17a ed.)Pawson, Ray, y Nick Tilley. "What Works in Evalutation Research?" The British Journal of Criminology 34, no. 3 (1994): 291-306.
Cita MLA (8a ed.)Pawson, Ray, y Nick Tilley. "What Works in Evalutation Research?" The British Journal of Criminology, vol. 34, no. 3, 1994, pp. 291-306.
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