Medical work of the Knights Hospitallers of Saint John of Jerusalem : by Edgar Erskine Hume. foreword by His Most Eminent Highness Fra Ludovico Chigi-Albani. preface by Lieutenant-General Sir Aldo Castellani

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• History of the Souvereign Order of Saint John of Jerusalem : Knights Hospitaller of Malta ; under the Hereditary Protection of the Royal House of Jugoslavia
• The Knights Hospitallers in the Holy Land
  gan: King, Edwin James
  Cyhoeddwyd: (1931)
• Sovereign Military Hospitaller Order of St. John of Jerusalem of Rhodes and of Malta : International Review
  Cyhoeddwyd: (1975)
• History of the hereditary government of the Sovereign Order of Saint John of Jerusalem, Knights of Malta : Jerusalem 1050-1291, Cyprus 1292-1310, Rhodes 1311-1523, Malta 1530-1798, Russia 1798-1907, U.S.A. 1908-[1970]
  gan: Pichel, Charles Louis Thourot
  Cyhoeddwyd: (1957)
• The Military and Hospitaller Order of Saint Lazarus of Jerusalem ; Newsletter U.S. Association