Colvin, G. Seven steps for developing a proactive schoolwide discipline plan: A guide principals and leadership teams.
Цитирование в стиле Чикаго (17-е изд.)Colvin, Geoff. Seven Steps for Developing a Proactive Schoolwide Discipline Plan: A Guide Principals and Leadership Teams.
Цитирование MLA (8-е изд.)Colvin, Geoff. Seven Steps for Developing a Proactive Schoolwide Discipline Plan: A Guide Principals and Leadership Teams.
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