Author not established. Revolution School. Date not established. EHREA archive: /library/documents/doc-6842245056d694f0ba8e39cc/
[1] Revolution School. Original source: http://www.ehrea.org/article.php. Preserved original: /library/originals/7c1fa42d403ccc885a77c30a0010962e75f43f906856d55b4b93937148f6877b.html. SHA-256: 7c1fa42d403ccc885a77c30a0010962e75f43f906856d55b4b93937148f6877b