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1Livropor Esland, Geoff“…Open University (Great Britain). School and Society Course Team…”
Publicado em 1971
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2Livropor Dale, Roger“…Open University (Great Britain). School and Society Course Team…”
Publicado em 1972
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3Livropor Esland, Geoff“…Open University (Great Britain). School and Society Course Team…”
Publicado em 1972