Robson, C. (2000). Small-scale evaluation: Principles and practice. Sage.
Lua i Stíl Chicago (17ú heag.)Robson, Colin. Small-scale Evaluation: Principles and Practice. London: Sage, 2000.
Lua MLA (9ú heag.)Robson, Colin. Small-scale Evaluation: Principles and Practice. Sage, 2000.
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