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Positive Discipline: A Teacher's A-Z Guide
Jane Nelsen, Linda Escobar, Kate Ortolano, Roslyn Ann Duffy, Debbie Owen-Sohocki
E-bok. Harmony/Rodale, USA, 2009.
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Positive Discipline: A Teacher's A-Z Guide
Jane Nelsen, Linda Escobar, Kate Ortolano, Roslyn Ann Duffy, Debbie Owen-Sohocki
Häftad. Prima Publishing,U.S., USA, 2001.
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