Gregory, J. M. (1867). The hand-book of history and chronology: Embracing modern history, both European and American, for the 16th, 17th, 18th and 19th centuries; for students of history, and adapted to accompany the map of time. Adams, Blackmer & Lyon : A.S. Barnes & Co..
Παραπομπή σε μορφή Chicago (17η εκδ.)Gregory, John Milton. The Hand-book of History and Chronology: Embracing Modern History, Both European and American, for the 16th, 17th, 18th and 19th Centuries; for Students of History, and Adapted to Accompany the Map of Time. Chicago ; New York: Adams, Blackmer & Lyon : A.S. Barnes & Co., 1867.
Παραπομπή σε μορφή MLA (8th εκδ.)Gregory, John Milton. The Hand-book of History and Chronology: Embracing Modern History, Both European and American, for the 16th, 17th, 18th and 19th Centuries; for Students of History, and Adapted to Accompany the Map of Time. Adams, Blackmer & Lyon : A.S. Barnes & Co., 1867.