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↑R. M. Ogilvie (1979). ""The Struggle of the Orders."". The Classical Review. 29 (1): 109–10.{{cite journal}}: AS1-onderhoud: gebruik authors-parameter (link)
↑Killigrew, John W. (1997). "Feature Review". War in History. 4 (3): 349–53.{{cite journal}}: AS1-onderhoud: gebruik authors-parameter (link)