Middlewood, D., Coleman, M., & Lumby, J. (1999). Practitioner research in education: Making a difference. Paul Chapman Publishing ; Sage Publications.
Lua i Stíl Chicago (17ú heag.)Middlewood, David, Marianne Coleman, agus Jacky Lumby. Practitioner Research in Education: Making a Difference. London : Thousand Oaks, Calif.: Paul Chapman Publishing ; Sage Publications, 1999.
Lua MLA (8ú heag.)Middlewood, David, et al. Practitioner Research in Education: Making a Difference. Paul Chapman Publishing ; Sage Publications, 1999.
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