Stahl, W. H. (1953). Ptolemy's geography: A select bibliography. Public Library.
Cita Chicago Style (17a ed.)Stahl, William Harris. Ptolemy's Geography: A Select Bibliography. New York: Public Library, 1953.
Cita MLA (9a ed.)Stahl, William Harris. Ptolemy's Geography: A Select Bibliography. Public Library, 1953.
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