Van Duzer, Chet (4 June 2014). "Bring on the Monsters and Marvels: Non-Ptolemaic Legends on Manuscript Maps of Ptolemy's Geography". Viator. 45 (2): 303–334. doi:10.1484/J.VIATOR.1.103923. ISSN0083-5897.
Van Duzer, Chet (4 June 2014). "Bring on the Monsters and Marvels: Non-Ptolemaic Legends on Manuscript Maps of Ptolemy's Geography". Viator. 45 (2): 303–334. doi:10.1484/J.VIATOR.1.103923. ISSN0083-5897.