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The secret of Herbart an essay on education and a reply to Professor James of Harvard
- "The secret of Herbart an essay on education and a reply to Professor James of Harvard"@en
- "The Secret of Herbart: an essay on education and a reply to Professor James of Harvard"@en
- "Secret of herbart"
- "The secret of Herbart : an essay on education and a reply to Prof. James of Harvard"
- "The Secret of Herbart"
- "The secret of Herbart : an essay on education and a reply to Professor James of Harvard"
- "Secret of herbart : an essay on education and a reply to professor james of harvard"@en