Cita APA (7a ed.)
Tylor, P. W. Postmarks of Mexico 1821 to 1883.
Cita Chicago Style (17a ed.)
Tylor, Peter W. Postmarks of Mexico 1821 to 1883.
Cita MLA (9a ed.)
Tylor, Peter W. Postmarks of Mexico 1821 to 1883.
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