Speidel, M. P. (1986). The Caucasus Frontier. Second Century Garrisons at Apsarus, Petra and Phasis.
Chicago Style (17th ed.) CitationSpeidel, Michael P. The Caucasus Frontier. Second Century Garrisons at Apsarus, Petra and Phasis. 1986.
MLA (9th ed.) CitationSpeidel, Michael P. The Caucasus Frontier. Second Century Garrisons at Apsarus, Petra and Phasis. 1986.
Warning: These citations may not always be 100% accurate.