هذا الملف موجود على ويكي كومونز, ويمكن استخدامه في مشاريع ويكيميديا الأخرى. لرؤية هذا الملف على ويكي كومنز اتبع هذا الرابط.
Source: Collier's New Encyclopedia, VIII (New York: P.F. Collier & Son Company, 1921), p. 446. License:
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