Stubbs, M., & Delamont, S. (1976). Explorations in classroom observation. Wiley.
Lua i Stíl Chicago (17ú heag.)Stubbs, Michael, agus Sara Delamont. Explorations in Classroom Observation. London, New York: Wiley, 1976.
Lua MLA (8ú heag.)Stubbs, Michael, agus Sara Delamont. Explorations in Classroom Observation. Wiley, 1976.
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