Tài liệu tham khảo WikiPedia: Bản_đồ_học http://www.links4maps.com http://www.rare-maps.com/links.cfm http://www.freemaps.de/ http://www.sunysb.edu/libmap/libcats.htm http://www-oi.uchicago.edu/OI/PROJ/NIP/PUB93/NSC/N... http://www.uidaho.edu/special-collections/Other.Re... http://www.maphistory.info/collections.html http://www.populationdata.net/cartes/cartes.html http://oddens.geog.uu.nl http://www.mapref.org
