APA-referens (7:e uppl.)
Elmhurst Philatelic Society. The Following pages are corrections and additions to the Already Published Sections: EPS Mexico Postal Stationery Catalog.
Chicago-referens (17:e uppl.)
Elmhurst Philatelic Society. The Following Pages Are Corrections and Additions to the Already Published Sections: EPS Mexico Postal Stationery Catalog.
MLA-referens (9:e uppl.)
Elmhurst Philatelic Society. The Following Pages Are Corrections and Additions to the Already Published Sections: EPS Mexico Postal Stationery Catalog.
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