Revision history for entry Syme, Ronald (1939). "Roman Frontiers and Roads Quaderni delľ Impero: Il Limes Romano (I-IX) and Le Grandi Strode del Mondo Romano (I-XIII). Rome: Istituto di Studi Romani, 1937 and 1938. Paper, 2 or 3 lire each (according to size). [For details see C.R. LII, 158 f.]" [SYMRFA]

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